Endless Mode

For those who need a challenge.

As the name suggests, endless mode creates randomized levels for you to push the cart. Each level is completed when you push the cart to the end of the track. For every 3rd level, there will be a boss spawned in the same order as the campaign. Once you defeat the final boss, the levels will loop to the beginning with more enemies to battle. Weapons, hats and weapon mods can be found scattered in the level. Often a Merashop will be found in a level offering higher tier gear for coins you collected.

If you reach a high enough score, you can be on the leader boards!

Strategy
Watch your health. There is no time limit for each level so take it easy. Ammo is especially important in later levels so get some ammo leech mods.

Greed is good. Collect every coin you can get when defeating enemies. There is no time limit on each level. Use that to your advantage to collect any coins that rolled away. Certain paints and weapons can help you gain more coinage for your shots.

You can stand on the cart itself to zip across the course and finish levels sooner. You can even skip boss fights (except the last one) to save ammo. However there is a drawback, as Hutty would summarize:

So sitting on the cart gets you to harder levels faster, but you miss all the money in the early levels doing it. So you might not have good enough tools to survive the harder levels if you do that.

So a balance of good ammo and currency ratio will lead to better score. It goes also unsaid that your aim is also important too.

Weapon Unlocks

 * Defeating the Last Boss of a before a loop will unlock both of the weapons you are holding. These will then be selectable as your starting weapons from the character select menu.
 * Alternate starting weapons will always have one blue weapon slot
 * Locked weapons will be displayed as an outline showing there is something you have yet to unlock

Trivia

 * You can defeat Merasmus with enough patience and ammo. He will drop a coin for your effort upon defeat.
 * When playing past level 30, beware of frame drops