It's just Cotton (which is good if you like Cotton), and a couple mini-games on Ganbare Neo Poke Kun. The latter is worth it as well, so I recommend picking up both of them if you enjoy the system.
The Neo-Geo Pocket Color game of "Cotton: Fantastic Night Dreams" was slated for release in the USA back in 2000 but SNK USA decided that wasn't to be. And thus it was released in both Japan & Europe only. When the JPN release of NGPC Cotton finally made it's debut, it could be had for a mere 3,900 yen. It really is a nice shmup title worthy of playing on your NGPC handheld.