Hey <3 We realise this is an old project but we found a bug. Unsure if it's pico-8 or the cartridge itself.
Spent an unreasonable amount of time trying to do an animation and noticed a strange behaviour:
cls()
print(abs(-3)) -- 3
print(5*abs(-3)) -- -3
print(5*abs(-3*1)) -- 15
Anyway, this was delightful to try out <3