Up, down, left and right all control Squishy Boi in different ways, so experiment with all the games, and see thich one you like best!
I've been developing this game for over a month now, along with Squishy Boi '96, which you can play here: https://scratch.mit.edu/projects/474961238/ I started making Squishy Boi stuff when I began Secondary School, so I have Miss Murray to thank for letting me make the first Squishy Boi comic as a part of her lesson! I also have to thank the SBD Team once again, for helping with Ideas, testing, and other game developer things. Here's to another 3 years!