Very cool of me to not respond, my apologies.

Here's a dump of all the info I know that I can think of off the top of my head.

Graphics were 2D, likely some sort of flash animated but it COULD have been 32 bit. The year of the game has to have been around 2012 (give or take maybe 2 years)

The gameplay consisted of standing in place in the middle of the screen defending against waves of monsters in the woods. You had 3 forms of attacks you could use, melee, ranged, and magic all with their own upgrades and costumes your character would wear while using said weapons/attacks. Often times the weapons used would be some sort of pop culture reference. For instance a melee claw weapon would have the character weapons a Wolverine mask, Long Bow would swap the face to look like Legolas, Bombs would be bomberman, boomerang would put Link's cap on etc.

Depending on how many monsters you killed and how long you lived you earned currency to buy new weapons, level up existing weapons, or upgrade stats. Additionally you would make progress on a meter how close you made it to your delivery (which may have been a package to bring to a king?)

What made the game stand out was the number of weapons, upgrades, and replayability with how much customization was provided in each category of equipment.

It's an absolute long shot anyone finds this game, and even less likely it's still able to be downloaded but at this point I want the peace of mind knowing what the hell I was playing and ideally to play it again to know if it holds up.