Pressing the button on the bottom right (with the arrow pointing up) will make your character jump, which is useful if you wanna get over something, or if you’re SO EXCITED that you just have to JUMP REPEATEDLY.
Something that’s really useful to know however is that the jump will change based on how you’re moving:
If you’re completely still, the jump will be just as static and only take you up and down.
If you’re moving in a direction, then the jump will also go towards that same direction. For example, if you’re moving forward with the joystick and then press the jump button, you’ll jump forward.