Ranma 1/2 #2 is really fun(and fiunny), easy for gaijins and very polished.
The Space Adventure Cobra Sega-CD(Cobra II on PCE) is one of my favorites. Its well done, fun and has a great Army of Darkness style cool-cheezy localization. Its fairly straight forward, but is closer to Snatcher than the Gunbusters.
Policenauts for Saturn. I love this game, although like Cobra II it feels kinda linear/connect-the-dots-ish compared to Snatcher. Its less 'cheap' in its difficulty than Snatcher and is designed better as a game, but the theme/art/characters/etc aren't nearly as cool and feel bland in comparison. Still a great digital comic on its own.