Hamsters' Adventure!

Hamsters' Adventure! is an action game released for MS-DOS in 1996. You play as Mr. Hamster, on a quest to save his girlfriend from various rodents, primarily rats. You need to eat up all the fruit in each level in order to open the secret gateway. Simply bump towards the fruit - each level has 1 kind of fruit.
Super Kick - simply press the SPACE BAR (when you have no grenade on hand).
Strawberry Grenade - press ENTER to pick up Strawberry Grenades on the ground (pick up as many as you like), then press SPACE BAR to throw the grenade Never let the grenade explode near you - you will get killed.
There are energy biscuits on the ground. Press ENTER to pick it up in order to recover.
You can pick up as many biscuits as you like. To use the biscuits in your "inventory", press the "S" key, then use arrow keys to select, and press ENTER to take it out and use it.
Jump - press the "J" key
PAUSE - "P" key
Hint - "F1" key

What is abandonware ?