Hudson Entertainment has unveiled Onslaught, billing it as the first first-person shooter for WiiWare.
It's set in the distant future and sees you leaving a team of operatives investigating why a research colony has suddenly lost contact. In an astonishingly unpredictable plot twist, turns out it's got something to do with a load of strange and homicidal creatures, who proceed to attack you.
The Wii remote will be used to aim, and shaking it reloads ammo. You use the nunchuk to lob grenades. There's an online co-op mode for up to four players.
There's no word on a release date or a price point as yet, but at least there are some screenshots to check out.