El Viento
The complete guide to what seems to be the only good game Wolf Team ever produced. At least from what I've played anyway.
Earnest Evans
The follow up to El Viento is set before the previous game (at least in the Japanese version) and marks the only time that Earnest can be played as in the series.
Annet Futatabi
The final game in the series makes Annet the star once again, this time in a scrolling beat 'em up which was only ever released for the Mega CD in Japan.