Shield

Officially Block/Shield is an input involving the "shield" button in game. When pressing shield, characters as you can imagine block attacks in game either with a bubble of energy or some kind of dodging movement.

Shield Bubble
Unlike the Super Smash Bros. series, shielding has no recoil from attacks and absorbs damage in an instant. Shield becomes active the instant the shield button is pressed and inactive when released, or the shield "wears off" and the shielding player enters the dizzy state. Shielding is countered by grab or Chowder's side signature attack. All other attacks including Punch Time Explosions will be blocked by shield.

Dodging
Pressing in the left, right, or down direction while shielding will make the shielding player roll (left or right) or spot dodge (down).

Rolling can be used to coast off a platform as one of many ways to maneuver. However, rolling isn't entirely invulnerable to attacks like shield is and as a result rolling is something that must be used with full commitment. Some characters may even be more vulnerable than invulnerable.

Spot dodging leaves the player invulnerable to any and all attacks including throws but must be used with precision as the time of being invulnerable is incredibly low. The animation must be played fully and is unable to be canceled leaving this maneuver to mostly be used for avoiding grabs, however air dodging close to the ground proves to be much more effective as the player is active much faster and doesn't have to play the animation fully, being canceled by landing on ground.

In addition, air dodging is performed when shield is pressed in air. Air dodging will leave the player unable to perform any attacks and only able to jump afterward. Air dodgin is also canceled by simply landing on ground. Air dodging in this sense can be useful for breaking projectiles and approaching enemies by quickly avoiding attacks and punishing when used close to ground.