OvO is a fast-paced platformer where you have to use exact parkour skills to finish each level.
To move and jump, use the arrow buttons. To slide while running, press DOWN. To go higher in the air, jump while falling. When you are in the air, press DOWN to smash. This lets you go through levels that are clear.
You can also jump higher if you jump right after you smash or if you stand next to a wall while you jump. Press UP as you slide down a wall to do a wall jump.
Get to the flag as soon as possible. Get the bonus coins to open up skins that you can choose from the main screen.
Have fun and good luck!