ご連絡ありがとうございます。
はい、ぜひ「Jezzak」をご紹介いただけたら嬉しいです!YouTubeチャンネルを拝見しましたが、とても面白そうですね。どうぞよろしくお願いいたします。
Thanks for the feedback! I think I will add a tutorial slide for the first level as many people have missed the tutorial and the info on the game page. No one really wants to play a tutorial anyways.
The campaign is intended to be difficult but not impossible. Some levels have a little bit of a puzzle aspect to them as well. A few additional notes. The game will usually provide a way to get out of difficult situations. So if the balls are too fast there is a good chance there is a lightning or snail power up incoming. If there are seeker missiles there will likely be a chaff countermeasure power up. Also missiles can be confused be exiting the screen and appearing on the other side as they don't have that ability and instead must arc back towards you. The play through video posted here illustrates some techniques that might be useful.
If you get stuck on a level and want to move past it you might give the Konami code a try from the main menu ;-)
You can actually using the simulator included in the free playdate SDK . It works pretty well and has controller support. You can also 2x the size of the display making it 800X480 which isn't too far off from Barrack's original 800x600. I made the Episode 1 play-through video using the SDK on 2x using the playdate as a controller if you want an idea what it would look like.