Maruhan held the mega opening of Maruhan Mega City Ichihara on 1 July 2025, according to the venue listing on minpachi.com1. The hall is in Yawataura, Ichihara, Chiba Prefecture, and is the third Mega City store in the prefecture1.
The venue lists 1,122 machines in total, described as the largest installation in the region: 608 pachinko machines and 514 slot machines1. Opening hours are 10:00 to 22:451. The address is 1-4-7 Yawataura, Ichihara, Chiba Prefecture1.
Admission on the opening day ran on a lottery system. Lottery tickets were distributed from 09:00 to 09:25, the draw began at 09:30, entrants reassembled at 09:50 and admission started at 10:001. The listing states a numbered ticket is required but no membership card is needed1.
Play pricing is listed as follows1:
| Category | Price |
|---|---|
| Pachinko | 4 yen, 1 yen |
| Slots | 21.73 yen, 5.43 yen |
Exchange rates are listed as equal value (等価) for all four categories, and the daily replay limit for the fee-free portion is unlimited for each1. The prize exchange counter is directly outside the exit to the right of the counter1.
The listing also carries user ratings: an overall score of 42 points from 29 ratings, with 2.8 for operations, 2.3 for customer service and 2.7 for facilities1. Historical event-day data shows an average difference of minus 158 medals per slot machine across a sample of 99, and minus 1,145 balls per pachinko machine across a sample of 991. By event day, the slot figures are minus 130 medals on days ending in 1 (10 samples), minus 46 medals on days ending in 7 (3 samples) and minus 212 medals on days where the month and date match (1 sample)1. The former event days are listed as days ending in 1, days ending in 7, the last Friday of each month and days where the month and date match1.
What it means for players
The hall is a pachinko and slot venue, so play is for prizes under Japan's rules rather than for direct cash payout. The listing gives equal-value exchange for all four price tiers, which is the rate at which prizes convert, and unlimited replay on the fee-free portion1. Entry on the opening day was by lottery with tickets issued in a 25-minute window before the draw, so arrival times matter on event days1. The historical event-day averages recorded on the listing are negative for both pachinko and slots, meaning players on those days returned less than they put in on average across the samples shown1. Those figures cover past event days and are not a statement about the opening.
What happens next
The listing records the opening date as the anniversary event date1. No further schedule has been reported.
For background on the operator, see Maruhan: Entry Rules, Games and Getting There. For the game itself, see Asian Gambling Games: Mahjong, Pachinko, Fan-Tan, Teen Patti, Rummy, Sabong, Keno and Where Each Is Legal. For the legal position, see Can I Gamble in Japan?.
Sources1 sources
- マルハンメガシティ市原, みんパチ, minpachi.com
