30XX:Echocave

Echocave
A crystal cavern that bumps to the beat. Full of appearing platform, deadly crystal foes, and so much sound.

Echocave is a zone in 30XX. It is an underground cave filled with various speakers and musical instruments.

Gimmicks

Object	Description
Falling Crystal	Jagged, target-agnostic spike that falls when a player passes under it. If it happens to bump into an enemy before it hits you, it deals 100 damage and that's pretty great. When level editing, attach this to ceilings. Can be destroyed with attacks. Getting hit by the stalactite will damage the player for 1 Projectile damage.
Strike Platform Crystal	Attack this to activate the matching colour's Strike Platforms. Will turn on all platforms of its colour in the chunk. Colour is variable.
Strike Platform	Appears once the matching Strike Platform Crystal is struck by a player. Will wink out of existence after a set time. Colour and the time it takes to disappear is variable.
Crystal Path	Define a path of platforms which appear and disappear in a sequence, forming a path for the player to follow - or completely ignore, disregarding your hard design work. Block active time and amount of active blocks at once is variable.
Spikes	A painful, solid spike that harms the player for 1 Hazard damage on contact. The player cannot wall jump on spikes, even if they have knockback resistance.
Lava	Adjustable blue rectangle of destruction. Never moves, no matter how hard it tries. It doesn't try very hard, though. Falling into lava will damage the player for 1 Hazard damage, and respawn them on the last safe spot they were on.

Enemies

• 

  Bat

• 

  Drill Face

• 

  Trap Mole

• 

  Crystal Elemental

• Sonicrab.gif

  Sonicrab

• Crystal Spawner.gif

  Crystal Spawner

Bosses

(Gonna replace this section with bigger, centre-aligned images of the boss and miniboss once I get everything set up, this'll do for NOW)

• 

  Echocave Miniboss

• 

  Echobeast

Music

• Hollows (Level Theme)
• Hollow (Intensity Mix)
• Abyssal Depths (Boss Theme)
• Circadian Groove (Victory Theme)
• Mines at Dusk (Editor Track) - Named after a notable level in Mega Man Maker which placed second in the 2017 Level Creation Contest.
• Existential Shuffle (Identity Crisis EC Mix) - A remix of the 20XX track Identity Crisis (Vaculab's theme) in an electro swing style, likely inspired by Hollows.

Trivia

• In the Public Demo versions of 20XX, Echocave used the music track High Fidelity, which was later updated to The Upside Drown, the theme of Watergrav.

History

• Early Access 0.44.0:
  • Sound Alarms have been replaced with the Sonicrab enemy
  • Added the Crystal Spawner enemy
  • Added Digzones
• Early Access 0.15.0: Stage theme changed to Hollows.
• Public Demo 3: Now available again.
• Public Demo 2: Temporarily made unavailable.
• Public Demo 1: Released. At the time, the music track High Fidelity was used as the stage theme.