Ganchan

Ganchan are rock-like enemies from Super Mario Land that are found in the mountainous and spike-filled areas of the Easton Kingdom of Sarasaland. They are large, indestructible boulders that bound around unceasingly. They can be used as convenient platforms to get across long stretches of spikes or to reach high areas out of reach, mostly in World 3-1. Hiyoihoi also uses Ganchan as projectile weapons in World 3-3. Although Ganchan appear as generic boulders, they are living beings.

Super Mario Land

 * 3DS Virtual Console manual: These rocks fall from the sky. They can squash Mario, but he could also jump on one and take it for a ride. They can't be destroyed.

Perfect Ban Mario Character Daijiten
''' ガンチャン 種族 　岩石族 性格 　お人好し 登場 ゲーム　ランド1 ''' 利用できるなら大歓迎 どこからともなく、急に落ちてくる大きな岩. やっつけることはできないし、下敷きになるとワンミスに. 上に乗ることができるので、下が危ないところで移動に使うと便利だ.

 Ganchan  Tribe: Rock clan Disposition: Good-natured Game appearances: Land 1 ' You're welcome to use it if you can ''A large rock suddenly falls out of nowhere. You can't defeat it, and if you get trapped under it, you lose a life. You can ride on top of it, so it is useful to use it to move around in places where the ground below is hazardous.''