SHIFT
= Insert Coin
ENTER
= Start Game (after inserting a coin)
**Alien Challenge** was produced by International Games System in 1995.
International Games System published a total of 7 different machines under this trademark starting in 1994.
During the time **Alien Challenge** was produced, other machines produced by International Games System included **Rock Fever EX**, **Chugokuryu 3 Special**, **Crazy Dancing Ex**, **Do DonPachi II – Bee Storm**, **Weapon Master**, and **Golden Captain**.
**Alien Challenge** is a one-on-one 2D fighting game featuring a total of 9 characters, 8 selectable characters, and 1 boss.
