A brief, one level platformer for the 2026 GBAJAM! You can view the source code here: https://git.sr.ht/~mtthgn/sun_rise_gbajam_2026/

Some of my favorite details from this jam:

1. Animated Background tiles! This is something I've wanted to do for a while now, and I felt like my approach ended up working really well. The code assumes a sentinel location for the animated tiles, but now that time constraints are gone I can make those more automatically trackable when compiling levels.

2. Background Blending! The fading effect during the intro uses the GBA's background blending registers. I had never messed around with them until this jam, and it was a lot of fun getting that working.

3. QR Codes! I had fun making the credits page, and I like that QR codes are something you'd never really have seen in a GBA game.

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A lot of ideas hit the cutting room floor for this jam due to time / life constraints, but I'm excited to keep iterating and improving this one! I'd love to hear what you think.

Credits