The origins of the game lie with the original classic arcade game Space Invaders. However, Space Invaders Get Even puts a twist on the formula by letting the player control the space invaders themselves.
Breaking away from the gameplay of the original game and its spin-offs, Space Invaders Get Even sees players piloting the invader's UFO across a landscape rendered in 3D graphics, which encompasses areas such as cities, deserts, forests, oceans and military bases. By downloading the extra stages, players are also given the option to swap out the UFO in the game with ships from the Darius and RayForce series of Taito shoot 'em ups, as well as a polygonal version of the "classic" UFO from Space Invaders.
Players move the UFO with the analog stick of the Nunchuk, and then use the pointer function of the Wii Remote to direct a swarm of up to 100 invaders in blowing up buildings and destroying the defending forces of Earth, with continuing destruction increasing the time available to the player. The invaders, which are rendered as flat, glowing two dimensional sprites which resemble the invaders in the original game, can utilize a number of attack formations to dispatch enemies, including forming a drill-like formation to bore into them or crushing them by bouncing on top of them from above. Over time, human forces will shoot down the player's invader troops, which the player replenishes by shaking the Wiimote. Upon eliminating all opposition in the stage, which includes fighter jets, helicopter gunships and gunboats, the player must then take on a large boss, which include a giant tank, mecha and a huge battleship.
The game also features online leaderboards.
Source: Wikipedia, "Space Invaders Get Even", available under the CC-BY-SA License.