Jyk (ジャキール, Jyakeel in Japan) is an enemy/trap in Super Smash Bros. Brawl's The Subspace Emissary mode. It is a non-sentient spike ball that either stays in one place or moves in a predetermined path. There are three varieties of Jyk, depending on the environment: Flame Jyks appear in caverns and ruins, Electric Jyks appear in the sky and in mechanized areas, and Hydro Jyks (which do electric damage) appear near lakes, rivers, and frozen tundra. Because a Jyk cannot be killed, it is more like an obstacle than an enemy. It also cannot be captured by a trophy stand. Instead you must clear Boss Battles with 20 characters to get the Jyk trophy. Jyks are noticeably similar to the Gordos from the Kirby series.
Trophy description
A six-spiked enemy. Attacking a Jyk will do no damage, as they can't be defeated. But you'd better believe that a Jyk will deal out damage to you if you get too close. This foe epitomizes player-hindering obstacles--it gets in your way... and it hurts. It definitely isn't thought fondly of by the characters in the game. It may have something to do with its SHARP SPIKES! Ouch. The Jyks are blood."