Klik & Play is supposedly compatible with the Mac II.
It works in MiniVMac (Mac II).
There's a homebrew MiniVMac (Mac II) port for the Nintendo 3DS.
Therefore Klik & Play can be run on the Old 3DS
I've tried and succeeded at running the Mac version of Klik & Play on my Old 2DS.
Now I can gamedev action games on my Old 2DS.