Pangea Software has released Nanosaur Extreme, an enhanced version of Nanosaur.

Nanosaur Extreme features five times as many enemies and weapons as the original, and is more difficult, according to Pangea.

The enhanced game requires a 350Mhz G3 or faster, an ATI Rage 128 and at least 64MB RAM.

It's a free download for registered users of the game, which recently became $15 shareware.