Impetus

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Impetus (formerly known as Catalyst) is a 2.0 Hard Demon mega-collaboration created by ViPriN, Xcy-7, Codex, Nasgubb, Goose, DWShin, Kips, ZenthicAlpha, Vlacc, and GDSpeed, who also verified the level. It is generally considered to be a Hard Demon due to moderately difficult wave segments with tight spaces and fast-paced sections.

Gameplay[]

Xcy-7: The level starts with a moderately easy cube section that features some fake jump orbs and timings. The part uses vibrant light blue and light purple as its colors.
Codex: The level then transitions into a ship with some straight fly. The size of the ship, the level's colors, the speed, and the gravity change multiple times.
Nasgubb: Starting as a UFO, Nasgubb's part uses basic 2.0 objects with many of them moving. It then transitions into a normal-speed wave and mini ball and then a double-speed ship with a short straight fly. Nasgubb's part ends with a normal-speed cube containing green orbs and a triple-spike jump.
Goose: Staying as a mini-cube the entire section, Goose's part frequently flashes in different background colors and uses a lot of moving objects. The part starts off with double-speed but switches on and off between the double-speed and triple-speed.
DWShin: DWShin's part starts as a reverse-gravity ship with two moving obstacles between which the ship turns mini and the player must quickly fly down near the bottom to perform a brief straight fly. After flying through a teleportation portal that will bring the player upwards, the player switches to normal gravity and must perform a second brief straightfly. It then transitions into a mini cube that starts with normal-speed and then ends with it being half-speed. The title of the level “Impetus” appears with many effects behind.
Viprin: Occurring at the drop, Viprin's part starts as a triple-speed UFO, before transitioning into a short cube part and then into a hard spam wave part. After that is a short cube part with one orb that leads into a short ball part (also with one orb). After another short cube part, some straight fly and a mini-wave spam, the part ends with a triple-spike jump. Viprin's part is dark-rainbow colored with “shadows” at the top and bottom.
Kips: Kips' part is a vibrant-colored and cartoonish-styled hard section. It starts as a triple-speed ship with orbs and portals, then transitions into an easier UFO part that turns mini midway through. The part ends with a mini wave that slows down the speed. The level then fades to black together with the player's icon turning invisible for a split second.
ZenthicAlpha: Starting as a triple-speed ship, ZenthicAlpha's part is a very detailed and decorated blue tech-themed section. The ship has the player navigate through many obstacles, and soon transitions into an up-and-down mini-wave which turns regular-sized soon after. It turns into a ship again, showing Zenthic's name and having similar gameplay to the part's beginning. The part ends with a mini-robot that contains many green orbs.
GDSpeed: GDSpeed's part highly resembles his part in Artificial Ascent with similar colors. His part starts with a triple-speed cube before turning into a short ship, quickly turning back into a cube part with many orbs that move into place. It then turns into an upside-down ship in double-speed with spikes following the player underneath them as an obstacle. At the end is a cube part with many moving objects and orbs that slows down at the end.
Vlacc: As the song calms down, Vlacc's part starts as a one-speed cube part that requires some timing. It then transitions into an easy mini-ball part that is at half-speed. It shortly turns back into a one-speed cube and ends with a triple-spike jump with the text “GG” visible at the bottom. The part is decorated in a simple 1.9-like design with a background in checkered patterns and with dotted lines.

Trivia[]

The password for the level is 314159.

The level was originally hosted by ASonicMen, but Viprin later took over.
The level has an apparent sequel called Delirium.
Viprin's and Speed's parts both bear a lot of resemblance to their respective Artificial Ascent parts.
In the editor, above the title of the level, the word “Catalyst” can be seen, and can be implied to be old title of the level.

Impetus

Gameplay[]

Trivia[]

Walkthrough[]