mholtkamp/ascent ? reverse-engineered prompt

Build me a simple Game Boy Advance roguelike in C that actually feels playable on real hardware or an emulator.

I want a small dungeon crawler with a player you can move around, a few enemies, basic combat, a way to pick up items, and a clear win and lose state. Keep the visuals simple and readable, with a tiny retro look that fits the GBA, and make sure the game has a title screen, gameplay, and game over screen. If anything important is missing, fill it in with sensible defaults so the project runs cleanly from the existing build setup.

Please make the code organized enough that I can understand where the game logic, graphics, and input handling live, and use the existing assets and project structure where it makes sense. If you need current GBA guidance or library details, look up the latest docs online first.