commandblockguy's CC22 entry
More info on the Cemetech topic.
To use, transfer TDEFENSE.8xp and the CE C Libraries to your TI-84 Plus CE using TI-Connect CE or TiLP. On OS 5.5, you will need to use arTIfiCE to run native programs.
The source is available on Github. To build from source, run:
make gfx
make