Simply put, it is Synthesia, but it can be minimised or windowed like on a computer for multitasking. This is convenient when using Synthesia for background music, which I always do on the computer.
Synthesia's code would simply have to be adapted for mobile versions only to support overlaying other apps, and dragging the game around and resizing the game, which will heavily impact on cpu usage. It might be good for powerful phones, but low-end devices will struggle a lot with this.
Floating Synthesia (for mobile devices)
Search the forum before posting your idea.
No explicit, hateful, or hurtful language. Nothing illegal.
No explicit, hateful, or hurtful language. Nothing illegal.