I played on my PC and the keys were all different than what the tutorial said. Took me a long time to figure out. K- Jumps, J -interacts/shoots, L- secondary weapon, U- makes a noise? The character moves a bit too slow. The art is good.
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Sorry I tried to simply the keys on the instructions below but it may have been confusing. I used generic button names for which buttons do which commands under the "Controls" section. The actual keys you can use are related to the button names in the "Button Options" section. U isn't just making a noise. It lets you alternate between your first weapon.
Will definitely the speed into consideration for the future. Thank you about the art.