Arrow keys - Moves the pointer You can also drag the prism itself. I got inspiration and wanted to see if I could do it myself. (turns out I could!!!!) Also yes this is made with only 43 blocks (for the pointer itself anyway.) in like... 10 minutes or so. Donno if this is too accurate tho :P
-Credits- Me for the coding @-MinttTea- for the inspiration -Other things- -nothing...yet