Hammerin' Harry is a Platform Game from Irem
The Story: Harry's house has been taken down to make place for a new shopping 
center, so Harry takes his very big hammer and starts his crusade. 
While this game is pretty much another platform game, it is a very fun 
platform game with a huge touch of humor. Couple this with some very 
colorful and animated characters and you have a game that will bring you back 
again and again. You play the role of Hammerin Harry, going around and 
bashing everyone in his way. The game starts out with some guys taking down your 
house and putting up a construction site. You then get your hammer and it says 
"Hammer Time". Then as the level starts, it says "Let's Get Busy" both of which 
should date this game for you. You then proceed through the levels, bashing 
people and objects to make your way along. One of the neat things is that you 
can whack an object and send it flying at the enemies. This can really ease your 
job.
But you are not confined to the ground only. You can also climb up 
utility poles and jump up on boxes to get at or away from the enemy. This will 
keep you busy as you find out what parts of the environment are accessible and 
what is just scenery.
The characters in the game are very large and very 
cartoony. This makes the violence seem more comical as a many with a huge hammer 
could be quite scary. But with these big headed guys, it seems more like a Three 
Stooges short or a Warner Bros cartoon, where the violence borders on silly. Of 
course as in all platformers of the era, you have a big boss at the end of each 
level.