Cheep-Cheep from Super Mario Bros.

Mario's enemy - Cheep-Cheep from Super Mario Bros. Cheep-Cheep is a fish found mostly in the underwater, swimming towards Mario, where it can only be defeated with a fireball.

Blooper from Super Mario Bros.

Mario's enemy - Blooper from Super Mario Bros. Blooper is a squid-like creature found in the underwater, swimming towards Mario in a lazy homing pattern, where it can only be defeated with a fireball.

Koopa Paratroopa (Red) from Super Mario Bros.

Mario's enemy - Koopa Paratroopa (Red) from Super Mario Bros. Koopa Paratroopa is Koopa Troopa with wings. It would lose its wings and turn into normal Koopa Troopa if Mario jumped on it. Red-shelled Koopa Paratroopa usually flies up and down or side to side in a set path.

Koopa Paratroopa (Green) from Super Mario Bros.

Mario's enemy - Koopa Paratroopa (Green) from Super Mario Bros. Koopa Paratroopa is Koopa Troopa with wings. It would lose its wings and turn into normal Koopa Troopa if Mario jumped on it. Green-shelled Koopa Paratroopa often bounces in Mario's general direction.

Koopa Troopa (Red) from Super Mario Bros.

Mario's enemy - Koopa Troopa (Red) from Super Mario Bros. Koopa Troopa is a turtle-like humanoid with shell that comes in green or red. Red-shelled Koopa Troopa patrols a set area without walking off any edges. In Super Mario Bros., Koopa Troopa is the second enemy Mario encountered, directly after Goomba. If jumped on, the Koopa Troopa would recede into its shell, which could then be jumped on and used as projectile with which to attack other enemies. If left alone for too long, however, the Koopa Troopa would right itself.

Koopa Troopa (Green) from Super Mario Bros.

Mario's enemy - Koopa Troopa (Green) from Super Mario Bros. Koopa Troopa is a turtle-like humanoid with shell that comes in green or red. Green-shelled Koopa Troopa walks aimlessly in one direction until it is slain or falls off of a cliff. In Super Mario Bros., Koopa Troopa is the second enemy Mario encountered, directly after Goomba. If jumped on, the Koopa Troopa would recede into its shell, which could then be jumped on and used as projectile with which to attack other enemies. If left alone for too long, however, the Koopa Troopa would right itself.

Goomba from Super Mario Bros.

Mario's enemy - Goomba from Super Mario Bros. Goomba is one of the major species in the worlds of the Mushroom Kingdom. It only walks in one direction, but upon collision with an obstacle or another enemy, it would turn around and walk in the opposite direction. It also blindly walks off ledges, often falling off a cliff. In Super Mario Bros., Goomba is the first enemy Mario encountered. It is extremely weak and is flattened when defeated by a single jump on its head.