Darius Alpha is a 1990 Darius product, the "boss rush" version of Darius Plus. It was a mail-order exclusive, obtainable by sending in a pair of coupons found in the manuals of Super Darius and Darius Plus. There were only 800 copies of the card produced, making it one of the rarest, and the absolute most expensive, PC Engine HuCard ever made.

Like Plus, Alpha has the unusual feature of SuperGrafx support, which greatly reduces sprite flickering.

The boss rush

Darius Alpha plays much like the boss rush mode found in Super Darius, but with the boss count and order from Plus instead.

Pressing Select on the title screen starts the game like pressing Run, but with a 4-minute timer. Not very interesting, really; you might be able to take out Dual Shears in time.

When it Appears Bosses
01 King Fossil
02 Electric Fan
03 Big Rajarnn
04 Little Stripes
05 Dual Shears
06 Guard Savage
07 Red Crab
08 Hard Mollusk
09 Tough Spring
10 Keen Bayonet
11 My Home Daddy
12 Mystic Power
13 Fire Star
14 Green Coronatus
15 Octopus
16 Cuttle Fish
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