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Osu!stream

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osu!stream

Contents

Introduction

osu!stream is a version of osu! built from scratch that is made especially for touch-enabled devices. It is currently available for Apple's iOS platform only, but an Android port is planned. It introduces a brand new game-play system such as the hold circle and connected beats.

It does not support classic osu! beatmaps. Instead, maps are created by a special team of mappers to take advantage of the new elements and adhere to a stricter level of standards. Both free and paid maps are available at the "Store".

osu!stream was elaborated in osu!monthly #5 along with an interview.

Installation

osu!stream

iDevice's App Store method (Suggested)

Make sure your iDevice can connect to the Internet (either by Wi-Fi or 3G/4G).

  • Go to "App Store" from your iDevice
  • Search for osu!stream
  • Press and install osu!stream
    • If you are prompted to key-in your Apple ID and the password, please do so.
  • osu!stream can be played after the download and auto-installation is completed.
    • It is suggested you read "Adding Beatmaps" section too to ensure you get the latest free songs pack. Your download contains only 2 songs.

USB method

Your computer must have iTunes installed.

  • Go to this link and download it
    • If they request for Apple ID, key-in your Apple ID and the password.
  • Plug-in your iDevice to your computer (that has osu!stream).
  • Transfer the osu!stream files using iTunes.
  • Unplug your iDevice and osu!stream can be played.

Adding Beatmaps

Make sure your iDevice can connect to the Internet (either by Wi-Fi or 3G/4G).

  • Open osu!stream.
  • Press the osu! symbol and you should be directed to the main menu (or tutorial if this is your first time)
  • Press the "Store" bar
    • You can also head to "Play" and press "Download more songs!"
  • Select your desired pack.
    • It is suggested you download packs that do not cost you money first. Free packs have "FREE" tag instead of the "USD$" cost tag.

What is the difference?

  • Playable on any iOS devices only. (for now)
  • Beatmaps are made from scratch.
  • You do not need an account to download song packs.
  • You can integrate osu!stream with your Twitter account.
  • Your high score may be sent anonymously to the site under the name of "Guest" (if happen but requires Internet connection).
  • The circle timer is replaced and moved to the bottom with a small border line which is coloured depending on your accuracy. [Bottom(Long)]
  • Average Timing is given at the grade page.
  • You can't save old records nor can you save replays.
  • You can't change your skin nor can you apply any mods (yet).
  • Easter Eggs can be found but there is no Achievement page...

New Game-play system

Note: You can learn it practically at the "Tutorial" about these new game-play elements.

Finger Guides Display

  • The two transparent circle that appears in-game is created to help beginners to know when to hit the objects.
    • It will shows the suggested method to tackle the design of the map with perfection.
  • The green colour is for the left hand and the red colour is for the right hand.
  • You can disable this feature from the option menu or after you have completed your tutorial.

Connected Beats

  • Connected Beats, as the title suggested, requires you to press both the objects at the same time.
    • Connected Beats are not limited to just "hit circle-hit circle", it can be "hit circle-slider", "hold circle-slider" and so on.
  • Connected Beats can be identified by having a straight white line connecting with another object.

Hold circle

  • Hold circle requires you to hold the circle until the circle "explodes"
  • The hit accuracy is determined by how early/late you hit and your holding time.
    • If you release hold before the circle "explodes", your combo multiplier will reset to 0 but the hold circle will not incur a miss as long as you have at least, touched the hold circle.
    • If you did not hold the circle, your HP will be taken as long as the hold circle have not exploded itself.
  • Hold circle can be determined by having a "hold" at the circle with a purple colour background bordered by white colour as permanent default colour scheme.

New Modes to replace the difficulty

Easy mode

Easy mode

Difficulty: Easy + NoFail
Easy mode is for new-comers to get used of the osu!stream game-play. The gameplay are considerably slower for new player to understand the flow and timing to hit. No lifebar will be issued and playing Easy mode will not unlock Expert mode even when you have 100% accuracy.

The background colour is Green.

Stream mode

Stream mode

Difficulty: Easy ("Stream Down!" from Normal) ~ Normal (start point) ~ Hard ("Stream Up!" from Normal)
Stream mode is a new implementation specially for osu!stream. In this mode, player will start with a half-filled "2nd" lifebar with a normal difficulty setting set. The player is then tasked to fill it full to trigger "Stream Up!" which basically tune the difficulty up (by adding more hit object and alternating to "Hard" design) but still considerately less harder than Expert mode. When player entered "Stream Up!" mode, a (third/second) lifebar is issued and "Stream Down!" will occur when the (third/second) lifebar ran out of health, reverting back to the (Normal/Easy) difficulty setting of design and using the half-filled (second/last) lifebar.

In short, you start in between Easy and Hard.

Do note you must score at least A (>80% accuracy) rank in this mode in order to unlock the Expert mode of the song. Accuracy lower than 80% even when you managed to full-combo does not count as A (it will be counted as B as usual).

The background colour is Green (Easy), Blue (Normal) and Pink (Hard).

Expert mode

Expert mode

Difficulty: Expert
Locked by default and can only be unlocked by completing the Stream mode of the song with an A or better, Expert mode is for players that wants a better challenge. In this mode, player is given a full lifebar and player is tasked to preserve it until the end of the song. Completing it will not unlock anything but bragging rights.

The background colour is Purple and the lights will darken depending on your current HP.

Interface

Song list

Go to this link for a full list.

Scoring

Accuracy

Accuracy = HitValue / (PerfectHitValue)
HitValue = (Number of misses * 0 + Number of 50's * 1 + Number of 100's * 2 + Number of 300's * 4)
PerfectHitValue = (Number of misses + Number of 50's + Number of 100's + Number of 300's) * 4

In other words, each miss towards to 0%, each 50 towards to 25%, each 100 towards to 50% and each 300 towards to 100%.

Score

The score given by each hit circle and end of a slider is calculated with the following formula:

Score = Hit Value + Hit Value * (Combo multiplier * Fixed multiplier) / 25
Hit Value = The hit circle judgement (50, 100 or 300).
Combo multiplier = (Combo before this hit - 1) or 0, whichever is higher.
Fixed multiplier = The multiplier that fixes the score into 600.000

Additionally each slider start, end and repeat tick awards 30 points and each spin of a spinner awards 100 points. You are also awarded with additional bonus of 10 point depending on the speed of spinning the spinner after the spinner meter is full.

Hit circle judgement

Hit-circles

  • You get a 300, 100 or 50 from a normal hit circle depending on how accurately you tap on it.
  • If you do not tap on the hit circle at all or tap on it too early, you will receive a miss.
    • If you tap on it really, really early, the object will shake instead. Nothing will happen technically except visually telling you are tapping it too bloody early.

Hold-circle

  • The judgement of the hold circle depends on the initial tap and the hold time before exploding.
    • 300 if you do it perfectly.
    • 100 for a less accurate initial hold and holding it properly.
    • 50 for at least, touching it.
    • 30 for every explosion.
    • Multiplier reset if you did not hold the circles properly and Miss for not doing it.

Sliders

  • The judgement for sliders depends on the accuracy of the initial tap.
  • Sliders consist of slider ticks, which include the start, end and repeat points of the slider.
  • You receive a 300 if you successfully get all slider ticks and accurate initial tap, a 100 if you get at least half of them with considerable initial tap and a 50 if you manage to hit even one of the ticks or the initial tap.
  • Clicking a slider way too early does not incur a miss, but will reset the score multiplier to 0.
  • You will only receive a miss if you do not do the slider.

Spinner

  • For a spinner, you receive a 300, 100 or 50 depending on the number of spins done compared to the length of the spinner.
  • You receive a miss if you are not able to fill the meter shown on both sides of the spinner.

Multiplier

The following each add a point to your score multiplier:

  • A successfully hit on the hit circle.
  • A successfully hold on the hold circle.
  • A successfully hit at the start of a slider.
  • A successfully touched end of a slider.
  • A successfully touched on the slider tick.
  • A successfully completed spinner.

The following will reset your score multiplier to zero:

  • Missing a hit circle.
  • Releasing the hold circle when it is not exploded yet.
  • Unable to simultaneously hit the connected beats. (Hit one miss one)
  • Clicking a slider start way too early.
  • Missing a slider start or slider tick.
  • Unable to fill up the gauge of a spinner with a clear status.

The following will not increase or reset your score multiplier:

  • Missing a slider end. (Will result in getting Good! or 100/50 Hit)
  • Spinner's score Bonus

Grades

Grade screen

Normal grades

  • SS = 100% accuracy
  • S = Over 90% accuracy
  • A = Over 80% accuracy
  • B = Over 70% accuracy
  • C = Over 60% accuracy
  • D = Anything else.

Life meter

Unlike the Standard osu!, the lifebar is different in osu! stream as it is based on gameplay mode.

In Easy Mode, lifebar is completely removed.

Example of Stream Up! from Normal

In Stream Mode however, player is given three lifebars and player starts with the second half-filled lifebar at start. Player (gain/lose) the lifebar by (Stream Up!/Stream Down!) message for (filling the lifebar full/used up all the HP on that lifebar). After the message is shown, the game will show an animation at the background which (tune up/tune down) the difficulty and issue you a half-filled lifebar. If a player is issued a "Stream Down!", player is given temporary invisibility (due to no health left in the currently using lifebar) until the animation is completed in which the lifebar will be substituted with a half-filled one from the previous difficulty.

In Expert Mode, a full one lifebar is issued.

In terms of getting life for lifebar, it is explained as in below.

You gain life from:

  • Hit allowed: 300, 100, osu!, gold good! and green good!.
    • Hitting the hit circle(s). (Better judgement leads to more life gain. The last hit circle in a color combo awards more life.)
    • Hitting the slider(s) start, end or return tick. (Better judgement at the end tick leads to more life gain)
    • Completing the Spinner and Hold Bubble(s) properly.

You lose life from:

  • Hit cause: 50 , Miss
  • Missing any hit object or sliders.
  • Not following the slider(s).
  • Not holding the Hold Bubble until it explodes.
  • Unable to complete the spinner with "Clear" message.
  • Not spinning the spinner.

You reserve life from:

  • Default. Lifebar will not drain at all while playing.

Questions

Why is (insert any copyrighted songs here) not included?

  • Because of the difficulty in obtaining licensing for the said song.

How do I get more beatmaps?

  • You can go to the "Store" section in the game or pressing the "Download more songs..." at the "Play" section.
  • The beatmaps are in bundle, and some are priced. Make sure to look out of the price tag if you do not want to accidentally buy it.

What is the theme song of osu!stream?

Can you post the credits here?

Links