Onslaught - WiiWare

Onslaught sees the player as a member of a military team sent to a research colony on a distant planet after contact is lost. Upon arrival the team is attacked by swarms of cyborg insects, which the player must destroy and ultimately uncover what happened to the colony. The game features 13 levels grouped into tiers, with the player needing to pass all stages in a tier and defeat a boss in order to progress to the next one.