I must admit that I really do love playing good old shoot’em’ups; they are so simple, so addictive and yet require so much skill.  I remember this begin released by PSYKE.  This company were very prolific; especially in the NEO GEO days.  They also released in this particular series a third game and a strikers plus exclusively for the NEO GEO.  All there games play the same so, you if you like on, you probably like all of them.