Classic game, very nice and orginal production. Worth playing any time.
This is classic platformer, after completing one lever u naturally go to another one. Of course you will meet many bosses on your way.
But back to Felix. He is super cat using machines to fight with enemies for the love of cute cat women. During game you collect small hearts, maybe even kisses of your darling, that makes you improve and gain new machines, more powerful and faster.
We can call it level upping, because we start with weak machine, when we get some kisses, it gets bigger and changes form, it usually has 6 or 7 forms depending on which level you play. Maybe in water? Maybe that level is in the sky? Maybe just a usual ground battle? None knows!
Reader, this game is worth playing! , awesome classic.