Like the idea of controlling 2 character at once. I think you should try to do more easier level at the beginning to make the mechanic ramp up slowly. I tryied to make my robot go up, but couln't made the last jump before the red button. After failing 5 times at this place I stoped. A progressive level would have made me stay more
Take cre of your main menu, the flash may be a problem for epyleptics