Sky Adventure versions

[Jeneki]

I picked up a Sky Adventure (1989 SNK) pcb last year. Honestly, I can't see it ever going into my top 25 list, but it's interesting enough. Lots of on-the-fly weapon swapping to hit enemies from multiple angles, and a mix of bullet farming and speed killing bosses for score.

Out of curiosity, I took a look at some videos around the net, and the ones I've found so far play very different from mine. Playing my pcb, I can switch weapons and special attacks at any time, and bosses lose their bonus value very quickly so I have to use creative weapon swapping to hit time continuously from every angle to score well. On the videos I'm finding though, collecting a different powerup seems to trigger weapon swaps, and boss timeouts are much longer. So I started searching around the net about this game, but I haven't found much good info yet.

Does anyone know if these are different revisions, or if different regions got different versions of the game?

Thanks!

[1up]

I think it's a great game and used to play it all the time in the arcades. I've tried it at three different locations and all of them had weapon swap by picking up powerups. A green plane would drop a series of powerups and one of them was a letter that changed your plane type.