Hi there,
Thanks a lot for playing my game. And sorry about the Spanish text — I thought everything was translated, but I guess I missed some parts.
About the up and down keys: they’re mentioned in the manual because I’m planning to add vertical aiming later on. I just ran out of time with the deadline getting close, so I had to leave it for now.
Make sure to keep the game updated. I’m pushing updates often to fix bugs and improve things, including what you mentioned.
Thanks again for the feedback!