From a relatively lukewarm opening, DK Bananza is showing quite good legs.
Positive word of mouth perhaps.

Where did you get the 2.3m from? Edit: Alinea Analytics is not reliable

It had a pretty mild opening but good legs.

In the UK it spent 2 weeks at number 1, over 4 weeks in the top 5 and was top 20 for pretty much 4months, often climbing back into the top 10 including Christmas week.

In the US it was ranked as 13th best selling PS5 game of 2024 in the US (3 months of sales). This was all before any bundles (march 2025). It remained No.11 best selling PSN game in January. It's not a crazy seller but it sold well and charted much better then it did in Japan where it only spent 4 weeks in the top 30 versus (16+ weeks in Europe/US)

It didn't bomb, or even really do badly, it's more that it deserved better sales given how high quality it was.

I feel like if the same game had released on Switch/2 as an exclusive it would have sold 20 million plus just cos that audience is more amenable to cartoony platformers.

PS5 still has 4 titles in the software top 30. I wonder if they can hang on through the holidays or if they will be shut out of the software charts for at least one week by the Nintendo systems.

This certainly wouldn't happen but I get why people feel this way. 

People take for granted the power Nintendo's reputation, IP and design plays in the success of their games. If Astrobot was on the Nintendo Switch/Switch 2, it would still be made by Playstation (3rd party) and although it has Nintendo's charm gameplay wise, it's not 1:1 match for how Nintendo builds characters and IP (Think Kirby, Donkey Kong etc).

In actuality Astrobot would probably sell the same if not worse on Nintendo compared to playstation because:
1. It's not made by Nintendo
2. It would have more competition (would have to compete  directly with Nintendo's releases)

We can look at other big platformer releases for reference. They've all opened to bigger numbers on Playstation (globally), although the Switch versions tend to have better legs at retail meaning it may even out but there is no clear sales advantage on Nintendo. Even in Japan where Switch has 3:1 userbase lead, the actual sales of 3rd party platformers do not suggest there is a clear preference for the genre on Nintendo's platform 

Sonic Generations

1. [NSW] Sonic X Shadow Generations (SEGA, 10/25/24) – 7,021 (New)
2. [PS5] Sonic X Shadow Generations (SEGA, 10/25/24) – 3,629 (New)

Sonic Frontiers

• Switch: 26,067
• PS5: 11,111
• PS4: 9,098

Meanwhile Sonic Generations In the UK

• PlayStation 5: 50% of sales
• Nintendo Switch: 29% of sales

For sure a family friendly game which is likely to be bought for kids will attract a longer shelf life on Switch, so that's not to say there is no advantage. And if it was a multiplat game with parity, I'm sure more people would enjoy the option for portability but I don't think the actual audience for the game would be much bigger on Nintendo compared to playstation. People would still just stick to Nintendo 1st party releases.

I meant more as in "if was a Nintendo game".

Sonic and the like are multiplat, while in the scenario I referred to it'd be exclusive, so all sales would be concentrated on one platform instead of shared.

Exclusivity alone wouldn't change its sales prospects IMO but I agree if it was made by Nintendo it would sell more. I do hope for the next game Playstation ground Astro more inside it's own world with memorable characters.

New famitsu sales are out.

Switch 2 – 97,677
PS5 Digital Edition – 17,491
Switch OLED – 16,004
PS5 Pro – 15,736
Switch Lite – 12,896
Switch – 6,427
PS5 – 2,559
Xbox Series X Digital Edition – 64
Xbox Series S – 56
Xbox Series X – 52
PS4 – 13

1. [NS2] Mario Kart World – 49,586 / 2,251,711
2. [NS2] Kirby Air Riders – 46,287 / 241,881
3. [NSW] Pokemon Legends: Z-A – 35,225 / 1,306,801
4. [NSW] Momotaro Dentetsu 2 – 22,361 / 141,141
5. [NS2] Pokemon Legends: Z-A – Nintendo Switch 2 Edition – 20,031 / 818,046
6. [NS2] Momotaro Dentetsu 2 – Nintendo Switch 2 Edition – 15,730 / 93,288
7. [NS2] Hyrule Warriors: Age of Imprisonment – 9,647 / 109,786
8. [NSW] Minecraft – 7,386 / 4,057,382
9. [NSW] Dragon Quest 1 & 2 HD-2D Remake – 7,262 / 293,851
10. [NSW] Animal Crossing: New Horizons – 7,245 / 8,265,856