This is my entry for the Triple Trijam 2020. I choose the theme Chain Reaction.
My inspiration came from the japanese game Magical Drop (マジカルドロップ).

Use the keyboard to play. The keys can be changed in the settings.

Diversifiers

Make a game that can be played with WASD, ZQSD, Arrow Keys, and IJKL
Make a game in a genre you've never made a game in before!
Make a game with a main menu! In a game jam! WOW!!

Credits

Created with Construct 3.
Music Loops by Timofey Rostilov from the Noun Project
Medula One Font by LatinoType
Monotalic Font by Nikola Kostić

Third entry after 3+4+3=10 hours: Play Chain Reaction (10 hours)

Second entry after 3+4=7 hours: Play Chain Reaction (7 hours)

The test took me more time than I thought. There are still a couple of bugs that I can't solve. But I've already used an hour longer than I should. In the next few hours I will have to add sounds and create a menu (to choose the level of difficulty and the controls to use). I would also like to have a ranking of the best results. But I don't know if I will have the time.

First entry after 3 hours: Play Chain Reaction (3 hours)

In the first 3 hours I created the assets and the basic movement. Score and Winner/Lose conditions are still missing.

Chain Reaction (itch) (Strani Anelli) screenshots