Four-in-one is an ambitious concept. You pulled it off pretty well. All the games were enjoyable.  The helicopter one took a while to get the hang of but it felt good once I did. Roscoe was and Draw were solid. the Wizard one I kept having enemies spawn on top of me which killed me.  Also I could run outside the screen off to forever and never get caught. Having unique art and sound for four different games is an accomplishment.

Yeah, that checks all the multi cart boxes. Roscoe for Best New Character at GOTY this year.

My main recommendation would be to include the instructions and controls in the game itself- not everyone is going to have the patience to open the game page to read them. I liked the helicopter one the most once I got the hang of it