ant512 has released an updatae to Hanky Alien. Most of the changes go into the Dreamcast version of the game, and the DS version gets minor unnoticeable changes.

Changes for Dreamcast are:

Added sound;
Fixed palette;
Improved performance;
Fixed layout for NTSC TVs.

Note that the sound doesn’t work at all well with lxdream.

Aside from the massive behind-the-scenes rewrite, there shouldn’t be anything noticeably different between this DS version and the last release.
Source -
Download DS version -
Downlaod Dreamcast version -