Remember Duck Life? i would play the shit out of that game a couple years back.
This is why im making something similiar, Basically you have this bald guy who you have to train (You can train in: Strength, Durability (Health basically) and Move Speed).
But what if you dont want to train? You can visit the shops to buy stat upgrades (Prolly gonna be items for each stat that upgrade it by a certain amount of points) or raise the stat cap.
Once youre jacked you can go and fight various enemies (no ideas for those guys yet)