Sorry for the confusion during the gameplay. I’m not good at creating player-friendly introductions into the game.
For instance, there should be a popup message about what’s going on when “output” looks like “encoded keyword” but it’s not registered as a correct answer. It’s an encoding collision. Different inputs sometimes may encode identically. But the player is trying to find a “keyword”, not the encoded keyword output, so it’s always a real word like snowball instead of some gibberish. There is a manual page for output collisions, which appears after completing a level while hitting a collision at least once (the game gives a sound cue that it’s a collision).
This is probably the thing I need to fix: make game more easy to understand. As some other people said, it needs an interactive tutorial.
Thank you for playing!