Dyna Gear: An Action Adventure On The Era Of Dinosaur is a 2D arcade platform game. The player can choose from two characters - Roger and Wolf. Gameplay is fast and simple - just run left and shoot enemies. Heroes can use various weapons, like swords, flails or arrows. The world in Dyna Gear: An Action Adventure On The Era Of Dinosaur is full of dinosaurs and various strange creatures.

Two starships slip back in time from the year 2993 A.D. back 65 million years. Onboard one starship is ruthless Gustaf, and on the other starship, time patroler Roger. Both starships battle one another until eventually crashing into a nearby planet. They now find themselves in a tropical jungle in prehistoric times. Here, Roger meets Wolf, who is also in pursuit of Gustaf. Gustaf has managed to transform a living dinosaur into a combat dinosaur. Roger and Wolf now combine wits and continue in pursuit on the heinous Gustaf.