Vasara 2 is the sequel to the popular arcade shoot 'em up, Vasara. Set 1 and Set 2 likely represent different revisions or versions of the game's arcade release, possibly with minor graphical or gameplay adjustments.  The game retains the fast-paced gameplay of its predecessor, building upon its core mechanics and graphics to provide a more intense and challenging experience. Success, the original developer, likely oversaw the production of both sets.

Vasara 2 (set 1)

Varth - operation thunderstorm (920714 Japan)