Brian wrote:Adventure Island is a must on any system.
Yes. Adventure Island/Dragon's Curse is a must have. Oh. You were talking about the other Adventure Island.
Seriously, I love the Adventure Island games, though. However, the Adventure Island series is called Takahashi Meijin no Bouken Shima in Japanese while Dragon's Curse is called "Adventure Island" in English romanji. The New Adventure Island game for the TG-16 is called Takahashi Meijin no Shin Bouken Shima in Japan.
Also, almost all of the Wonder Boy series is on the PC Engine/TG-16 in some form, even Wonder Boy in Monster Land. All of them except Wonder Boy III: Monster Lair (the real Wonder Boy III, though this one is just called Monster Lair for the US version) have changed names, plot, and graphics, though.
Another game I recommend is Splatterhouse. That game is a simple walk forward and beat up enemies platformer, but it's just so much fun, especially when you pick up a weapon.
TG-16 is also a great place for Pinball fans with the Alien and Devil's Crush pinball games.
How is the TG-16 Shinobi? I tried it out and it seemed good, but I don't like to get too far in games when playing on roms.
I definatly third the recommendation of Parasol Stars, especially if you like Bubble Bobble style games.