James Pond 2: RoboCod (1991)
The underwater agent's second fishy outing was superior to the first in every way, and even added a secondary pun to the title. Using his robotic suit, our slippery hero has to liberate Santa's workshop from the clutches of the evil Dr Maybe.
Bubble Bobble (1986)
Super Metroid (1994)
Jet Set Willy (1984)
Starring Miner Willy from the classic Manic Miner, this built on that simple platform formula with perfectly judged difficulty and just enough reward for progress. Despite having less colour than a black & white photo of an albino corpse.
Chuckie Egg (1983)
One of the games that established the popularity of platform games. As Hen-House Harry you had to climb around levels to collect the eggs before the timer ran out or the hens got you.