Love Refinery is the fourth stage in Diver's City.
- Infinite Crocos spawn after 10 seconds300f, delay 10~13.33 seconds300f~400f.
- 10 Bore Jrs spawn after 16.67 seconds500f, delay 20~23.33 seconds600f~700f.
- 1 Koronium spawns as the boss after 26.67 seconds800f.
- 2 Le'boins spawn after 26.67 and 113.33 seconds800f and 3,400f.
- 6 Sir Seals spawns after 26.67 seconds800f, delay 26.67~33.33 seconds800f~1,000f.
This stage's challenge lies in kiling Koronium despite his own waves and the powerful attacks of his supporters get in the way. This challenge can be completely avoided in two ways, which you should exploit if you can:
- Just wait for Koronium to be alone in the front with no cats alive, summon Waitress, then activate an high level Slow Cannon. The cannon will slow Koronium for long enough to let Waitress complete her animation and just kill it while nothing else can get in the way.
- Wait for something else to be in the front and use it to trigger an attack with E. Kubilan Pasalan, which will kill Koronium from a distance.
If you can't, use regular critical hitters and/or crowd controller to sneak a hit in while others block his advance and the waves.
For the rest, you'll need tanky meatshields and/or high DPS units to kill the Bore Jr. as quickly as possible.