This is honestly one of the best games I have yet seen over at Kongregate. For this reason, I wouldn't post the hack for this game, all you cheaters out there: take your time and work for this one at least. :-)
A walkthrough wouldn't hurt though. ;-)
Now the first 5-6 vawes are quite easy, all you need to do is keep whacking them bunnies, until you've got enough money to purchase the 'Assistant' upgrade, after which you will have the Landlord fighting alongside with you. My strategy was that I have purchased the Assistand upgrades up to the 3rd level, where he's already whacking the bunnies with an SMG. Bunnies will most likely do some damage to the pub, so don't waste money on upgrading the default gun.
After you've purchased the 3rd level upgrade for the assistant, start saving up for your own SMG. Once you got it, you should pay for the 'Scavengers' upgrade and max it out asap, so that money will be generated at a faster rate. After this is maxed, you should buy yourself an SMG and start upgrading it. The first upgrade you max out should be the reload time and then you can move onto the others. Do not forget to buy ammunition, as if it runs out, then you'll be in trouble. Although by following this guide, you should be able to play through the entire game without a single save, you might wanna take advantage of that feature. ;-)
Once you got your SMG maxed out, you can start with the other upgrades, especially with the 'Fortify' one, as bunnies are getting increasingly tough by now. Buy all the other upgrades, except for the level 4 assistant upgrade. The reason why you shouldn't buy it is because it would upgrade the Landlord's weapon to a shotgun, which basically renders him pretty much useless...
Once you are done with all the other upgrades, start saving up cash for the Minigun. It shouldn't take long and keep in mind that ammunition for the Minigun is quite expensive, so buy it only when you get like 70-75k. After the following waves, upgrade the Minigun to level 3 and there you go, it would be pretty much straightforward from this point.
Do not forget that instead of reloading, the Minigun overheats. You can, though, keep almost constantly shooting, if you are pressing the mouse button as if you were to shoot with your default gun, the Pistol. This way, you can maintain an almost constant firing, whacking pretty much everything on the screen instantly, but your gun wouldn't overheat.
A few tips:
- do not forget to repair the building after each turn if it's damaged
- if there are mechanical bunnies incoming (like the tank or the flying ones),
shoot them first, as they do massive damage to the building
- do not bother buying other weapons, than the ones pointed out in above walkthrough
- for the last level (the Bunny Queen, wave 60), do not bother buying grenades or
the grenade launcher, just keep shooting its' head with your Minigun
I hope this helps you if you couldn't complete the game.