I think the game is tedious. RPGs are often tedious, but at least there's some graphics and animations to look at and a world to walk around in instead of some rooms to click on.
It's pretty easy because a medpack only costs $100 and restores 50 hp with no upgrades, 75 hp with one upgrade, 100 hp with two upgrades and 150 hp with three upgrades. You get money very quickly in the end. $30 per zombie or more if you have the money upgrades. You can just keep buying mines and then placing them around the level, so they get damaged before they even reach you while you repair your car. Wait until you bought all weapons before spending (almost) all your money on mines though. Always keep a spare $100 for a medpack.
I seriously don't understand why it lags so much. With such a simple game, you don't even need to optimize it. Even with bad code, my laptop should be able to handle 100 enemies without problems and with good code it should be able to handle thousands of enemies. Remember that Minecraft on tiny render distance renders 102,400 blocks at most and my computer can probably handle 4 million blocks. This game has like at most 30 zombies on screen at once and a bunch of bullets. Is Flash so bad or did you program it VERY inefficiently? I remember some other 2D sidescrolling shooters on Kongregate also being slow although they didn't just outright freeze.
It's a fun game for an hour, but it runs slow after shooting a lot and every 10 seconds it freezes for a few seconds. This on a laptop with an i7 processor. On other computers it may freeze for like 10 seconds as I've seen in the comments. I give it 2 stars because of the lag and 3 stars if it's fixed. It's too repetitive for 4 stars. It needs multiple levels and more varying gameplay for that. 5 stars is for masterpieces.
I died at 5 million at first, but the second game I could go on forever, but it became boring already. It seems some people have been playing it for hours to get on the highscore list. :P Just holding left/right and up at the same time. Put something on your keys and go to school or work and when you come back, you'll have a billion points. xD
Just get the easy badge and forget about the hard badge. The movement is sluggish and you get too large to avoid mines before coming close to reach 1938 points to get the hard badge. Let's say you play an hour and still don't have it. That's an hour wasted without any progress. At least in many games, every hour/minute/second is progress towards your goal.
If you die in the beginning, restart the game, otherwise you'll get the bad ending like me. Although it doesn't really matter because both endings give you the medium badge. If you're already far, don't bother restarting.
Don't just spam attack monsters if you don't need to. Level up in order to insta kill them so you won't be damaged at all. Always use a potion if you have half a heart left or even if you have 1 heart left, just to be sure that you don't die.
At the top floor, you'll get a pickaxe. Carefully check every single floor for cracked walls. If you rush downwards, you'll miss them and have to go through all floors again.
Light all torches for the sword at level 22, which insta kills ALL enemies in the room as soon as you enter it!
I earned the easy badge in 3.5 minutes. After that I played for an hour. It's too hard. They keep complaining about elevators, but how many do I even need? I don't have room for them. Then the reputation drops and I lose all my money and I wasted all my time.
I ran my hotel into the ground by loaning all the money in order to expand the hotel and build a capacious elevator, but I didn't have enough money for it and also the interest ruined me.
It's weird how I'm playing a free flash game and find out it's for sale for $10 on Steam. Sure, it's an improved version, just like another flash game that is sold on Steam, but is it that much better that it warrants a $10 price? It's still better than $20 for a game that lasts only 2 hours, that's for sure. But it's the same price as Terraria and that game is just better. More enemies. Platform mechanics everywhere instead of only on the overworld. MUCH bigger inventory in a grid shape. Many bosses even though I've not defeated one yet. Very interesting cave designs with all kind of resources and structures and monsters instead of simple corridors with some simple ores that you just grind with 1 worm.
I don't like how you can only play 25 times to try to get the medium badge and then you have to start all over and it takes about 20 weeks to get good enough gear to have a chance to collect 25 large diamonds, so you have to slowly grind for money again.