In the game, it says "Lever 01" when you mean "Level 01". Pretty hard to fix a mistake like that. A 'lever' is a mechanical device. A 'level' is a concepetual plane.
This reminds me of these games called Memory Balls that are all exactly the same except they use different unlisenced images from television and movies. I think they are mass produced by someone who does not speak English very well.