Master System: Alien Storm Condition:Cart Only The progress is largely linear

The progress is largely linear with a small number of choices with a different outcome

prepare yourself and your team for anything +óÔé¼-ó Explore and discover an infinity of levels and layouts +óÔé¼-ó Carry your crystal through waves of monsters to the exit of each level +óÔé¼-ó Fight your way to the surface to discover the truth about Auriga The game also includes the following content: +óÔé¼-óDeep Freeze +óÔé¼-óDeath Gamble +óÔé¼-óRescue Team +óÔé¼-óOrganic Matters

It's all here

This is mostly the parody of Gradius (Nemesis on some systems)

Master System: Alien Storm Condition:Cart Only The progress is largely linearShape changing alien scum take over your city! Fry the slimy horrors and smash their bid for global conquest. Blast into action with fire blazers, electric whips and more!