Forget about performance, specially in a 2d game like this one. Focus on making it fun (really-really fun is possible). I have played games that didn't perform

Forget about performance, specially in a 2d game like this one. Focus on making it fun (really-really fun is possible). I have played games that didn't performed so well because they were so fun. Games are about fun, anything else (narrative, performance, sound...) is secondary.