Use the arrow keys, WAS, or use the space bar to jump. Try to get to the edge to get to the next level if you get stuck press the R key to restart if you cannot restart press the flag. P.S. I made sure you'll know when you hold the record.
Thanks to @thelionfish for beta testing check out some of @thelionfish's games as well. I think I hold the record right now. Also, put any glitches into the comments.