Red Clash

Red Clash is a vertically scrolling space-themed shoot-em-up. Your spacecraft can move about the screen but can only shoot upwards, and you have to destroy waves of aliens before taking down their mother-ship and reaching the next level.

The original arcade version has five waves in total. Waves one and three both consist of slightly different swooping aliens that appear from the distance. Wave three is slightly more difficult in that it also has a large, dangerous, and indestructible asteroid that traverses the screen. Waves two and four are also similar, both taking place in a corridor or canyon, with the enemy appearing in clumps blocking your path. Wave five consists of the mother ship, as well as an escort. Destroying the escort will allow you to take down the larger ship, and start the next round which increases in difficulty. From the second round onwards, some aliens drop mines which must be avoided.

The Arcadia 2001 port is a simplified version of the game, with only three of these stages (three, two and five). In the last wave, you just need to destroy the ships attached to the bottom of the mothership to complete the round.