1. Product Overview
This document provides essential information for the BANDAI Union Arena Booster Box, featuring characters from Kaiju No. 8. This product is a booster box containing 16 individual booster packs for the Union Arena Trading Card Game. Each booster pack contains 8 cards, designed to expand your card collection and enhance gameplay.
The set includes a total of 80 types of cards plus 11 APP types, distributed as follows:
- Commons: 30 types
- Uncommons: 28 types
- Rare: 12 types
- Super Rare: 10 types
- AP11: 11 types
Each booster box is guaranteed to contain a parallel card.

Image 1.1: Front packaging of the Bandai Union Arena Booster Box, Kaiju No. 8 [UA28BT]. This image displays the product title, character artwork, and key details such as the number of card types and packs.
2. Box Contents
The Bandai Union Arena Booster Box [UA28BT] contains the following items:
- 16 x Union Arena Booster Packs (Kaiju No. 8 series)
- Each booster pack contains 8 collectible cards.
- A parallel card is included within the box.

Image 2.1: A single booster pack from the Bandai Union Arena Kaiju No. 8 series. This image shows the individual packaging for the 8 cards contained within each pack.
3. Setup and Preparation
This product is a booster box designed to supplement your existing Union Arena Trading Card Game collection. No assembly is required.
- Unboxing: Carefully open the outer packaging of the booster box.
- Accessing Packs: Remove the 16 individual booster packs from the box.
- Opening Packs: Gently tear open each booster pack to reveal the 8 cards inside. Exercise caution to avoid damaging the cards.
- Sorting Cards: Organize your new cards by rarity, type, or according to your deck-building preferences.
4. Usage and Gameplay
The cards obtained from these booster packs are intended for use with the Union Arena Trading Card Game. This game is designed for 2 players.
These booster packs provide new cards to enhance or customize your Union Arena decks. They do not contain the complete rules for playing the game.
For detailed rules and gameplay instructions, please refer to the official Union Arena Trading Card Game rulebook or the official BANDAI website. These resources will provide comprehensive guidance on how to play, deck construction, and advanced strategies.
5. Maintenance and Care
To ensure the longevity and condition of your collectible cards, follow these care guidelines:
- Handling: Always handle cards by their edges to avoid leaving fingerprints or creases on the card surface.
- Storage: Store cards in a cool, dry place away from direct sunlight and extreme temperatures. Use card sleeves, binders, or storage boxes designed for trading cards to protect them from dust, moisture, and physical damage.
- Cleaning: Avoid using liquids or abrasive materials to clean cards. For minor dust, a soft, dry microfiber cloth can be used gently.
- Material: The cards are made of paper. Protect them from water and humidity.
6. Troubleshooting
While issues with booster packs are rare, here are some common concerns and suggested actions:
- Damaged Cards: If you find cards that are significantly damaged (e.g., torn, heavily creased, misprinted) upon opening a sealed pack, document the damage with photographs.
- Missing Cards: If a booster pack contains fewer than 8 cards, or the booster box contains fewer than 16 packs, verify the contents immediately after opening.
- Resolution: For any manufacturing defects or discrepancies in contents, please contact the retailer where the product was purchased or BANDAI customer support directly. Provide proof of purchase and detailed descriptions or images of the issue.
7. Specifications
| Brand | BANDAI |
| Model Number | UA28BT |
| Set Name | Union Arena 28th Booster Type |
| Item Type | Trading Card Game Booster Pack |
| Theme | Anime (Kaiju No. 8) |
| Number of Players | 2 players |
| Unit Count | 128 cards (16 packs x 8 cards/pack) |
| Material Type | Paper |
| Manufacturer Minimum Age | 12 months (Recommended for ages 9+) |
| Item Dimensions (L x W) | 15.75"L x 5.91"W (Box dimensions) |
8. Warranty and Support
This product is manufactured by BANDAI. For any inquiries regarding product defects, missing components, or general support, please contact BANDAI customer service or the authorized retailer from whom you purchased the product.
Please retain your proof of purchase for warranty claims or support requests. Specific warranty details may vary by region and retailer.
You can find more information about BANDAI products and support on their official website: BANDAI Official Store