We all love game sales data, and I can provide a small amount. I work at the store with the red color scheme and can check sales data in a limited fashion. I'm not sure if this includes copies shipped in the mail, but here we go. Everything's rounded to the nearest hundred.

Smash Ultimate

• Week ending Jan. 12 (week 6): 12,800
• w/e Sept. 14 (week 41):             2600

New Super Mario Bros. U Deluxe

• w/e Jan. 12 (week 1):                13,900

Splatoon 2

• Week ending Jan. 5 (week 77): 6300
• w/e Jan. 12 (week 78):              3000
• w/e Jan. 26 (week 80):              1600
• w/e Feb. 16 (week 83):              2200
• w/e Sept. 14 (week 113):          400 (strat guide bundle), 70 (no strat guide)

Crackdown

• w/e 2-16 (week 1): 700

DMC 5

• w/e 3-9 (week 1): 2300 PS4, 600 Xbone

Division 2

• w/e 3-16 (week 1): 3200 PS4, 2300 Xbone

Sekiro

• w/e 3-23 (week 1): 4100 PS4, 900 Xbone

Yoshi's Crafted World

• w/e 4-6 (week 1): 10,000 or 8500 (I have two figures written down for some reason. Maybe there was a limited edition.)

Astral Chain

• w/e 8-31 (week 1): 3200
• w/e 9-14 (week 3): 1000
• w/e 9-28 (week 5): 900
• w/e 10-5 (week 6): 300

Control

• w/e 8-31 (week 1): 1200 PS4, 400 Xbone

Collection of Mana (physical)

• No sales data available

Super Mario Odyssey

• w/e 9-14 (week 98): 1000 (strat guide bundle), 40 (no strat guide)
• w/e 9-28 (week 100): 1300 (strat guide bndl), 30 (no strat guide)

Breath of the Wild

• w/e 9-14 (week 132): 2 (strat guide bundle), 1900 (no strat guide)
• w/e 9-28 (week 134): 9 (strat guide bundle), 2400 (no strat guide)

MK8

• w/e 9-14 (week 124): 3000

Gears 5

• w/e 9-14 (week 1): 2400

Borderlands 3:

• w/e 9-14 (week 1) - standard edition: 8000 PS, 4900 XB
  • Forgot to check DX and Super DX edition sales

Link's Awakening (remake)

• w/e 9-21 (week 1): 36,200
• w/e 9-28 (week 2): 22,600
• w/e 10-5 (week 3): 8,500

DQ11 Switch

• w/e 9-28 (week 1): 1600

Code Vein

• w/e 9-28 (week 1): 200 PS, 30 XB

Ghost Recon Breakpoint

• w/e 10-5 (week 1): 1600 PS, 1200 XB, no data for limited editions

Feel free to request whatever you want and I'll try to check. And if you want proof, I can provide it. Just don't get me in trouble!

I'll check those next chance I get! Keep in mind the best I can get is Week To Date with a 24-hour delay, so I can only get full weeks of data on Sundays. I'll check Splatoon 2, MK8D, Smash and Astral Chain while I'm at it.

Updated OP with sales for Gears 5's and Borderlands 3's launch, Mario Odyssey, BotW, MK8D, Splat2, Astral Chain, and Smash Ultimate for the week ending Sept. 14.

Less data this time. Got launch sales for Link's Awakening, and checked Ni No Kuni Switch, but it had no data unfortunately.

Hey, it reached #9 on the NPD, and that's without digital sales. I think that's Platinum's best showing on a Nintendo system, so there's reason to be hopeful.

Updated OP with launch week sales for Dragon Quest XI Switch and Code Vein. Updates for Link's Awakening, Astral Chain, BotW, and Mario Odyssey.

some cool snooping work you're doing there, keep it up please!

For the week ending October 5...

Tom Clancy's Ghost Recon Breakpoint (week 1): 1600 PS4, 1200 XB

Link's Awakening (week 3): 8500

Astral Chain (week 6): 300

Thanks! Happen to have any requests for next week? Other than new releases; I'll always try to catch those.

Wow, Link's Awakening is selling far more than anything else. I think the next closest is NSMB U and Link's Awakening is blowing it away. Poor DQXI is getting overshadowed by the biggest release of the year so far (again).

I suspect retailers love Switch games way more than other systems' games.
I couldn't get sales for the week ending 10-12, but I did get them for the most recent week. Get ready, since I checked a lot of games (SKUs are combined).
Ring Fit Adventure (week 1): 3800, Link's Awakening (week 5): 3800 Astral Chain (week 8): 200, Ghost Recon Breakpoint (XB) (week 3?): 600, Breakpoint (PS): 700, Splatoon 2: 500, Octo Expansion Download Card: 50, Breath of the Wild: 2200, Mario Odyssey: 1000, Smash Ultimate: 3000, Mario Kart 8 Deluxe: 4000, Halo 5: 150, Gears 5: 500, Uncharted 4: 100, God of War (2018): 300, Arms: 100, Dragon Quest XI S: 500, DQ11 PS: 20