The base concept is neat, but I think the main "clear" mode gets a bit repetitive after a while. Also, I don't think this game is very accessible if you're colorblind, and even if you aren't, I don't recommend playing it on the original GBA or the AGS-001 SP model (the one with the frontlight), as some shades of colors are difficult to distinguish and in some levels there is poor contrast between the cursor and the background.