Hmm. Never heard of this series until now. Looks pretty cool. Looks to be popular in Europe but not so much in the US. The first two games only came out on GBA in the US, while the first 3 were on GBA and PS1 in Europe. This game was scheduled to come out here in the states as CT Special Forces 3: Navy Ops, but it was canceled. The 4th game was on PS2 and Xbox, but only Xbox I'm the US. Probably something to do with Sony America's then hatred of 2D games. So they seem kinda like Metal Slug? I'll have to check out the series someday (for GBA and Xbox, as I'm not a fan of PAL TV formatted games).