Underliner - Bullets, Puzzles, and Lollipops (Steam Key Provided)

An unusual combination of lollipops and bullets invites you to a world full of surprises.

Devlog: https://forums.tigsource.com/index.php?topic=72880.0
Steam page: https://store.steampowered.com/app/1927220/Underliner

Hello. I'd be appreciated if you could playtest my game, Underliner. Game design feedbacks are welcomed, but please note that the game is almost done, which means that it's unlikely that I'll make a new design decision.

If you decided to participate testing, I'd like you to tell me if you experience the things below:

Bugs or Glitches
Part of a game that is too confusing (e.g. complicated level design, too vague tutorial)
Puzzles that were too difficult or solved by accident

Underliner will be released on May 4th, but these are keys that can be activated before the release.

Steam keys:
B7WMR-AYV29-0EHDP (Taken)
8R2KB-A8QLT-60PLQ (Taken)

-REMAINING KEYS WERE DELETED-

Lastly, I’d like to make sure the right version is being distributed. Please check if the pause menu shows up when you press ESC. If it does, you’ve downloaded a correct version!

I am looking forward for your feedback!

-Edit-
Feel free to write Steam review!