Big Blob is a tag variant in which tagged players join hands with the tagger, forming an ever-growing chain that pursues the remaining free players. As the blob grows, coordination becomes increasingly difficult. The exercise builds group physicality, communication, and cooperative movement.
Structure
Setup
Players spread out across a large open space. One player (or a pair) is designated the Blob. All other players are free.
How It Works
The Blob player(s) chase the free players. When a free player is tagged, they join hands with the Blob - they cannot let go. The Blob grows with each tag. Only the players on the ends of the chain can tag free players (or the rule can allow any part of the chain to tag, depending on the facilitator's preference).
Coordination Challenges
As the Blob grows - four, six, eight, ten players - the chain must coordinate direction changes together. Without communication, the middle collapses while the ends pull opposite ways. Players quickly discover they must vocalize intent ("left!" "turn!" "go around!") and respond to each other's momentum.
Winning
Play continues until all players have been absorbed into the Blob, or until only one or two free players remain (they win).
Safety Note
Ensure the playing space is clear of obstacles. Players should hold hands rather than wrists to allow a clean release if anyone falls or the chain pulls unevenly. Remind players that falls can happen - keep chains moving at a jogging pace rather than a sprint.
How to Teach It
How to Explain It
"One person is the Blob. When you're tagged, you join hands with them. The Blob grows. Only the end players can tag. Last person free wins."
Why It Matters
Big Blob makes ensemble coordination literally visible and physical. The growing chain must solve the problem of group movement in real time - without a leader, without planning, under the pressure of a chase. The key discovery is that the group needs to communicate constantly and explicitly. What feels chaotic in the body maps directly to ensemble scenes: when no one is listening and everyone pulls their own direction, the scene collapses.
Common Coaching Notes
- Wait for the coordination breakdown. Don't intervene when the Blob tangles itself - that's the learning moment. Let the group feel what happens when they stop communicating.
- Prompt during play. Coach facilitators can call "How are you making decisions right now?" as the Blob grows.
- Debrief the problem-solving. After play, ask: at what size did it get hard? What did you start doing differently?
- Scale to group size. For small groups (8-10), start with two Blob players. For large groups (20+), the game runs itself.
- Physical warm-up value. The game generates genuine aerobic effort and laughter early in the session, making it useful as a first exercise to break tension.
Debrief Questions
- When did the Blob start working well together? What changed?
- How did you communicate without a designated leader?
- Where do you see this dynamic play out in ensemble scenes?
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Related Exercises
Slomo Tag
Slomo Tag is a warm-up exercise in which players play tag entirely in slow motion, pursuing and evading at a fraction of normal speed. The deliberate pace transforms a simple childhood game into an exercise in physical control, spatial awareness, and sustained commitment.
Foot Touch Tag
Foot Touch Tag is a warm-up variant of tag in which players can only tag each other by touching another player's foot with their own foot. The constraint changes the physical logic of the game entirely: rather than running and dodging at full speed, players must get low, stay in close range, and use lateral footwork to both pursue and protect. The exercise raises physical energy, develops agility and spatial awareness, and generates genuine group play in a physically unusual register.
Group Freeze
Group Freeze is a variation of Freeze Tag in which the entire ensemble participates simultaneously rather than tagging in one at a time. When a freeze is called, all performers stop in position, and any player can initiate the next scene from any frozen body in the tableau. The group format creates a faster pace, a wider variety of stage pictures, and greater collective responsibility for the game's momentum. Every performer is always on stage and always available to initiate.
Associatioin Chain
Association Chain is a circle exercise in which each player says a word inspired by the previous player's word, building a rapid chain of free associations. The exercise trains spontaneous, uncensored responses and reveals the connective leaps that drive improvised scene work. Speed is essential to prevent intellectual filtering.
Bibbidy Bibbidy Bop
Bibbidy Bibbidy Bop is a fast-paced circle game in which the person in the center points to someone and says a phrase. The pointed-to player and their neighbors must complete a physical pose before the center player finishes saying "Bibbidy Bibbidy Bop." Whoever fails takes the center. The game sharpens focus, listening, and reaction speed.
Ahab and the Whale
Ahab and the Whale is a physical group exercise in which players enact the dramatic pursuit and capture of a whale, using synchronized movement and vocal sound effects. The exercise demands full physical commitment and ensemble coordination. It builds group energy and breaks down inhibitions through collective absurdity.
How to Reference This Page
The Improv Archive. (2026). Big Blob. Retrieved September 28, 2026, from https://improvarchive.org/exercises/big-blob
The Improv Archive. "Big Blob." The Improv Archive, 2026. https://improvarchive.org/exercises/big-blob.
The Improv Archive. "Big Blob." The Improv Archive, 2026, https://improvarchive.org/exercises/big-blob. Accessed September 28, 2026.
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