LEGO Set

ROBOLAB Amusement Park Set

9725-3

Released: 2005 · Parts: 306 · Theme: RCX

ROBOLAB Amusement Park Set (9725-3) is a RCX LEGO set released in 2005 with 306 pieces. Browse the parts list, minifigures, and verify loose bricks with our free scanner. Collectors browsing RCX sets use this inventory to verify loose parts, compare color variants, and read official build manuals without downloading PDFs. This set includes 5 minifigures and 94 unique part types.

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Buying checklist

Quick context before you buy this set used or verify a marketplace listing.

Release year

2005 (21 years ago — may be retired)
Catalog scale

306 parts listed · 94 inventory lines tracked
Minifigures

5 in this set's inventory — verify completeness when buying used
Build manual

No digital manual in our catalog — check the box tab or LEGO.com
Shipping weight (est.)

~569 g for parts inventory (excludes box/minifig packaging)
Before you buy used

Run the completion checker, compare photos to the inventory, and check live listings for sealed pricing

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Related sets in this theme

ROBOLAB Amusement Park Set

9725-2 · 2002 · RCX

270 parts

ROBOLAB Amusement Park Set

9725-1 · 1999 · RCX

248 parts

Robo Technology Set [USB Cable]

9786-1 · 2003 · RCX

222 parts

Robo Technology Set (Serial Cable)

9785-1 · 2003 · RCX

221 parts

ROBOLAB Intelligent House Building Set

9795-1 · 2001 · RCX

164 parts

Infrared Transmission Tower

9713-1 · 1998 · RCX

2 parts

Infrared Transmitter with USB Cable

9783-1 · 2001 · RCX

1 parts

RCX Programmable Brick

9709-1 · 1998 · RCX

1 parts

Market value

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