This week IberDC’s Indiket ported Allegro’s Molefest by Robin Burrows (author’s site via Wayback Machine).
It’s a puzzle game somewhat similar to Pipepanic, but in this one you have to set a path so a turtle can move pieces within the level.
In order to compile it, Indiket used the jgmod library (MOD playback and others) which he ported to Dreamcast’s Allegro.
Here’s a binary and source to it. To link it using the precompiled binary attached, add the -ljgmod_099 flag.
For further info and the download of Molefest, check Dreamcast.es (click here for an english google-translated version)