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ikoid has the Final Frontier Bundle on sale for $1.75 at their site. It’s for Android ONLY.
Includes:
Planets Defense
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Shufflepuck Cantina GOLD
Smashing Planets
Xelorians
Xelorians sounds pretty cool. Was a huge fan of R-type/Parodius back in the day. There was a fun parody version of the game called Parodius that was awesome too.