USE TURBO MODE! can store nearly 2 HOURS worth of inputs at 30 fps, and it can do it for as many inputs as your computer can handle! do whatever combinations of arrow keys that you'd like, then press space, and they'll be played back to you! You can go inside and turn on the lists and variables if you're into that kind of thing. It only uses 1 variable and 4 lists!
I realize now that this is way more efficient, can hold more data, is more accurate, took way less time to code, and literally everything about this is better than my other way of storing inputs that uses weird graphs and the pen tool. So now I know that i wasted about 1.5 hours of my life yesterday. oof.