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Experiment21 (21 for short) is a Mega Realm Boss in The Extended Tale of Diep, functioning as an area boss for the Erythea administrative region in the Realm of Sassafras. Idea by Diepmon.

Overview

21 is the first artificially created Hesperian, being entirely robotic instead of a cyborg like Sassafras JR. He was created by someone named "Daktor. Lakys" (apparently a codename for a Hesperian scientist, as Dr. Lacus clearly didn't make 21.) 21 has masculine programming and is fully sentient, and by that, is by definition a Hesperian. However, he's nowhere as efficient at gathering IE Energy as the Sassafras Supreme.

Design

21 has a blue heptagonal body with two Dominator Turrets on his sides, with a blue Sassafras eye in the middle. He has three spawners on his three lower sides. He has a small "mechanical" detail thing near his eye. In Phase 2, he has greater ocular mechanical detail, and additional weapons described below in that section. His minions (who are also artificial but merely mindless drones) are pentagon-shaped with proportionally large trapezoidal barrels for their size. 21 is slightly smaller than a normal Sassafras, and so are his minions.

Phase 1

21 can be found charging himself with solar panels in Erythea's northwestern outskirts, powered off. Players must disconnect his charging device to begin the fight. When that happens, 21 will turn on and immediately attack the player who pulled his plug.

21 has no special attacks in this phase, only (rather sluggishly) chasing down players, switching targets if players get out of his targeting range of 25 tiles. He fires Destroyer bullets rather slowly and spawns a maximum of 4 of his unique minions (seen in the image below) with a spawn cooldown of 15 seconds. His Minions have 800 health each and fire off large Sniper-style bullets that deal high damage and have high penetration, at the cost of a reload spanning 11 seconds.

Phase 2

Experiment21Phase2EToD

21 in Phase 2, along with one of his minions.

At 13,000 health, 21 reveals more weapons previously hidden within his body and gains 30% damage reduction from added armor. He also gains a bit of

He retains his simple AI from the last phase, but his four Auto Turrets can target players independent of his current target, and he can spawn a maximum of 7 minions instead of 4.

The main thing to watch out in Phase 2 for is the Megabomber Cannon on his top, which fires off large Bomber bombs that explode after 6 seconds of being fired and have an effective explosion radius of 12 tiles. These are aimed at the current player 21 himself is targeting.

Trivia

  • I was thinking of adding a laser eye attack for 21, but since that's absurdly overused among Hesperians at this point, I decided against it.
  • If a Cytofras comes into view of 21 while he is battling, he will get confused, unable to process that this new arrival is both a Hesperian and not one at the same time (it's complicated, I'll explain later.)
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