@Maijestro
Thank you

I just watched the video. It's great to see how smoothly everything runs

A quick note about the vines at the end of the video:
To hang onto a vine, press the "Up Arrow" key after jumping onto it.
Unfortunately, I made the mistake of burying that information too deep in the readme. I’ve already stumbled across several YouTube videos where people were scratching their heads over how to grab onto the vine...
Maybe I should have just programmed it so that Trevor automatically grabs the vine without needing that key. I hate to think how many people have quit the game because I didn't communicate the vine mechanic better...
And if you get stuck, there are also cheat codes:
If you type "immortal" at the title screen, you get infinite lives.
You can also type "jumpto(level number)" at the same screen; for example, "jumpto4" warps you straight to Level 4.