A 1988 Platform Game starring a boy and his mecha suit, which appear in alternating sections of each of seven levels. The boy is only armed with a sword, but he can buy bombs and better swords which the mecha suit can use in the harder second half of each level.
The game originated in Japan as Mashin Eiyuuden Wataru, a Licensed Game based on an anime by Sunrise of the same title, but when NEC Home Electronics released it in the U.S. and made it the pack-in game for the TurboGrafx-16, they retitled it Keith Courage in Alpha Zones and wrote a new plot involving an Alien Invasion by the Planet of B.A.D. (Beastly Alien Dudes).
Tropes:
- American Kirby Is Hardcore: For starters, Keith Courage looks like an adult on the cover instead of the nine-year old boy he is in the game proper.
- BFG: The enemy Titan Guard carries an enormous pistol on top of its head.
- Deadly Doctor: The enemy Dr. Sting flies through the air and throws syringes.
- Defeat Equals Explosion: If Keith is killed while in the Nova Suit, it explodes.
- Degraded Boss: The first boss is a recurring mook in subsequent stages.
- Dual Boss: The fifth boss is a duo of two Recurring Bosses, and the Final Boss is a Palette Swap of the fourth with the addition of an invincible companion. The first boss also comes in two.
- Everything's Better with Rainbows: Levels are connected by a Rainbow Transport.
- Flying Face: The Skulls and Long Bones.
- Fun with Acronyms: Keith fights for N.I.C.E. (Nations of International Citizens for Earth) against B.A.D. (Beastly Alien Dudes).
- The Goomba: Zakkos, frequently Palette Swapped blobby little creatures that do nothing but walk.
- Inconveniently-Placed Conveyor Belt: Conveyor belts are all over the place in both parts of the last zone.
- Leap of Faith: In the Underworld sections, constantly.
- Lethal Lava Land: Fire Zone, the third level.
- Long Song, Short Scene: The Rainbow Transport music is quite a bit longer than what is heard in-game.
- Money Spider: A lot of different creatures drop golden coins.
- PiƱata Enemy: The flying cats are the best resource for money grinding, especially given that killing sixteen of them will spawn a golden version with a more valuable drop.
- Powered Armor: Keith's Nova Suit is depicted as this in the manual's comic, however, in the original anime, it was a Humongous Mecha.
- Recurring Boss: The first boss later reappears as a mook, Stitch and Baron Chairman return as a Dual Boss in Stage 5, and Mr. Roboto receives an upgraded Palette Swap for the Final Boss battle.
- Respawning Enemies: Enemies spawn continuously if you hold in one position, which is useful for money grinding on the overworld levels.
- Slippy-Slidey Ice World: Glacier Zone, the fifth level.
- Spikes of Doom: Touching spikes is instant death (same as a Bottomless Pit), and since Keith only has one life, it's back to the beginning of the level (or game) if he dies.
- Trauma Inn: There are hospitals in the overworlds where Nurse Nancy will heal your wounds for gold.
- Underground Monkey: The Titan Warrior is a golden version of Mr. Roboto.
- Wackyland: The Reverse Zone has upside-down pieces of ground in the air.