- Some instructions could be a little more precise to be correct (in case young kids are playing this), but no problem.
- Non-puzzle levels as transition between worlds is a nice artistic touch.
- The wildcard is an awesome feature. You can use it to skip a tricky level, and if you need it later, you can unlock it again by completing the level you used it on. This helps the fact that sometimes you're just blocked and need to process a puzzle subconsciously for a while, and when you come back later, it's easier.
- Sound and music volume is strangely high in this game. It had three levels in the setting, and even on the lowest, it's already very loud.
- Bonus levels locked unless you join the Steam group for the game. I understand that it is useful to them for getting feedback from people, but it should be a free decision, and not incentivized through content. They must know that people will just join and then leave again if they don't feel like giving feedback. Caring cannot be bought, and the attempt makes me care even less.
- Puzzles are designed to often contain a tricky element that needs unconventional thinking. Not as extreme as in Squishy the Suicidal Pig, and thus somewhat easier to progress in, at least as far as I can tell at this point.
At the time of writing this it's 90% off, and there's even a demo available. Easy decision.