Secret Agent

Enter an underground world of treasures and traps in Crystal Caves, a colorful EGA game that rivals any commercial game with its arcade quality, puzzles and graphics. As Mylo Steamwitz, enter cave after cave of adventure, gathering teasures and evading countless hazards. Crystal Caves is a mixing of Nintendo's Mario Brothers, Commander Keen, and Indiana Jones. As with all Apogee games, a high priority has been placed on solving ingenious puzzles built into the game. Episodes include "Trouble with Twibbles", "Slugging it Out", and "Mylo Verses the Supernova"

Duke Nukem is the debut of the world’s greatest wise-cracking, alien-punching, gun-toting badass - a man who would later go on to combine both ass-kicking and bubblegum in a revolutionary way. In a world ravaged by Dr. Proton’s villainous ambitions, the original video game action hero must rise against the evil scientist’s army of sinister Techbots. And although Duke isn’t exactly what the Doctor ordered, he’s exactly what the world needed.

A gigantic space explosion sends two strange meteors crashing to Earth. The call goes out and Mega Man speeds to the site. There he sees his arch-rival, Dr. Wiley, fleeing the scene, clutching one of the mysterious metallic meteors. Now Mega Man must uncover the secret of the second meteor in a race to stay one step ahead of Dr. Wiley and his new deadly breed of super-powered robots. • Battle across 14 huge stages to face eight devious new enemies. • Multiple upgrades for Mega Man - customize to your specifications every game. • Intense Japanese anime intros, cut scenes and cinema screens. • Incredibly fluid animation and highly detailed backgrounds.

Jetpack is a platform game available as freeware, originally published as shareware by Software Creations in 1993. The object of the levels is to collect all of the green emeralds scattered around the level while avoiding obstacles and enemies. Once accomplished, a door opens which the player must go through in order to advance to the next level. There is a single player, and a local multiplayer mode. The multiplayer mode supports up to eight players, where players take turns on the same machine. The player is aided in his quest by a jetpack and a phase shifter, which allows tunnelling through certain walls. The environments, which usually consist of mazes of bricks, also feature vines, gold, ladders, ice, boxes, pillars, and conveyor belts. Other obstacles include jagged rocks, force fields, teleport pads, and indestructible bricks. In order to keep his jetpack running, the player has to collect fuel, by means of single/double tanks or fuel grids. The game includes a simple level editor. Numerous levels have been published on Adept Software's website. The registered game features 100 pre-built levels. The developers also released a hintbook containing screenshots and a short piece of advice for every level.

The action franchise that started it all is celebrating its 20th anniversary with an all-new adventure on Nintendo DS! Set after the events of Contra III: Alien Wars, the game follows mercenaries Bill Rizer and Lance Bean as they battle to save the world from a new extraterrestrial threat. Contra 4 takes advantage of the dual screens of the Nintendo DS to deliver larger than life action, with massive enemies, detailed platforming and mind-blowing set pieces.

Electro Man seeks revenge against the robots which wronged him.

The Adventures of Captain Comic is a platformer featuring a huge nonlinear playfield divided into several different terrains. As Comic, you must search throughout Tambi for power ups and items that will aid you in your quest to recover the three treasures. The Captain's main weapon is 'Blastola Cola', a can of drink that allows him to hurl fireballs at his foes. For each can that he finds, an additional fireball can be thrown.

Lemmings is a puzzle-platform game developed by DMA Design and published by Psygnosis in 1991. Players guide a group of lemmings through hazardous levels to a designated exit. The gameplay involves assigning specific skills, such as digging or building, to overcome obstacles and avoid traps. Each level has a time limit and requires saving a minimum number of lemmings to progress. The game was released on multiple platforms and is regarded as a classic of the puzzle genre.

Contra (also known as Gryzor in Oceania and Europe), is a 1987 run and gun action game developed and published by Konami originally released as a coin-operated arcade game on February 20, 1987. The game had multiple ports, including for various computer formats. Several Contra sequels were produced following the original game.

This game contains elements from the Mega Man X series and the Mega Man Zero series. The game introduces a new open-ended gameplay environment and the ability to select the protagonist's gender, a first in the series. The player's character, Vent or Aile, is on a 2-dimensional overlay map with sprites where he or she engages enemies to finish the mission. When Vent and Aile receive a Biometal, they are able to change form, gaining various abilities, such as the charge moves, or charging their weapon with an element of that Biometal; for example, Biometal H will charge the weapon with electricity. While in a special form, using the form-specific abilities use up weapon energy. When Vent and Aile receive the other half of the Biometal, they are able to perform a different special ability.