Oh, modding.
Easy:
00:13:874 (1,1) - Remove combo for next (1) or remove this (1)
00:48:572 (1) - ^
Normal:
Make circle size bigger by 1
00:05:380 (2) - Place under (1)
00:05:922 (1) - Align with (2)
Hard:
00:07:548 (1,2,3) - Align each other to make a triangle
00:31:042 (6,7) - Align with (4,5)
00:46:946 (4) - Align with (1)
These are all suggestions, of course. Don't listen to them if you don't believe it'll help.
Easy:
00:13:874 (1,1) - Remove combo for next (1) or remove this (1)
00:48:572 (1) - ^
Normal:
Make circle size bigger by 1
00:05:380 (2) - Place under (1)
00:05:922 (1) - Align with (2)
Hard:
00:07:548 (1,2,3) - Align each other to make a triangle
00:31:042 (6,7) - Align with (4,5)
00:46:946 (4) - Align with (1)
These are all suggestions, of course. Don't listen to them if you don't believe it'll help.