MEGA BLOKS First Builders Toddler Blocks Toys Set, Deluxe Building Bag with 150 Pieces and Storage, Creative Open-Ended Play…
Mega Bloks
Best for
Best Duplo / Mega Bloks alternative
Amazon rating
Amazon aggregate, one input among many in the Verdict Score
Based on 3 trusted sources
Current price
$32.39
Updated May 15, 2026 · 1 min read
Sources behind this verdict
11 reviewers weighted by source trust
The consensus
What reviewers found
Synthesized across the trust-weighted source mix below.
Across the reviewers we read, this 150-piece Mega Bloks bag is the toddler-age plastic-block pick that comes up most often in head-to-head Duplo comparisons. A high-trust Best Buy customer-review summary highlights durability and parent-grandparent appreciation for the open-ended play. On r/toddlers, multiple threads ("Megabloks or Duplo," "Mega blocks vs Duplo") land on the same conclusion: Mega Bloks are easier for 18-month-olds to manipulate, cheaper, and easier to find secondhand in bulk.
What reviewers liked
- High-trust Best Buy verified-reviewer summary cites durability and creativity
- r/toddlers community consensus prefers Mega Bloks over Duplo at 18-month age for ease and price
- 150 pieces with reusable storage bag — strong piece-count-per-dollar
- Compatible with other Mega Bloks First Builders sets
Where it falls short
- r/lego and r/megaconstrux threads flag Mega Bloks quality control as worse than Lego/Duplo
- Some r/megaconstrux users report inconsistent clutch between pieces
- Plastic-only set — no shape variety beyond standard bricks
- Loud when dumped out, per verified-purchase reviewers
Across the reviewers we read, this 150-piece Mega Bloks bag is the toddler-age plastic-block pick that comes up most often in head-to-head Duplo comparisons. A high-trust Best Buy customer-review summary highlights durability and parent-grandparent appreciation for the open-ended play. On r/toddlers, multiple threads ("Megabloks or Duplo," "Mega blocks vs Duplo") land on the same conclusion: Mega Bloks are easier for 18-month-olds to manipulate, cheaper, and easier to find secondhand in bulk. Influenster reviewers echo the "big, sturdy, easy to grab" framing.
The honest counterweight comes from the Lego-adjacent communities. r/lego and r/megaconstrux threads complain about Mega Bloks' quality control compared to Lego — pieces breaking, inconsistent clutch. That criticism is more relevant to older-kid construction sets than to a toddler starter bag, but it's worth surfacing. For 1- to 3-year-olds specifically, the trust-weighted consensus is firmly positive.
- Perfect Fit for Little Hands
- Easy to grip, stack and pull apart, our blocks are designed for little hands
- First Blocks in Home
- Features 150 big building blocks including special shapes
- Creative Learning Play
- Toddlers can build anything they imagine and learn colors
- For Preschoolers Ages 1+
- Big blocks help to develop creativity, imagination, and fine motor skills
- Grow with MEGA BLOKS
- Combine our building toys to level the stacking fun
Customers highly value the First Builders Big Building Bag Building Set for its durability and appropriate size for young children. The blocks are well-received by children, and parents and grandparents appreciate that the blocks foster creativity. Overall, the building set is a source of entertainment…
Megablocks are definitely easier to use than duplos at 18m. They are also cheaper. We got a giant bag of megabucks for 10$. However, we are a ...
Quality is poor. The few sets I built fell apart quickly, and some pieces flat out broke. Electronic elements also deteriorate quickly, whereas ...
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“MEGA BLOKS First Builders Review” · Best Toddler Building Blocks ...
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