Squadwise this German team looks very ordinary. No real focal point. Draw probably worst result for Japan, as Germany will be favorite against Costa Rica, so Japan will need to play to win against Spain.
You never know, but I now expect 1. Spain, 2. Germany (likely playing Croatia or Morocco) Japan now needs to beat Spain (or play for a draw and hope Costa Rica at worst lose by one goal). Costa Rica needs to beat Germany (or play for a draw and hope Spain beats Japan)
Germany are in a strong position You must be Costa Rica, and hope Japan loses which it looks like they will if they draw then Costa Rica is a good opportunity
Personally it would be fun and hilarious if Japan and Costa Rica win to go through. But pure Footballing wise it would make me cringe to see a team that gave up 7 goals in a match going through.
If Germany wins 1:0 and Japan draws with Spain 1:1, than Japan go through (or 2:1 and 2:2, 3:2 and 3:3, etc.). Germany wins by more than 2 goals and Japan needs to win.
Way ahead of you, look up! If Germany wins 1:0 and Japan draws with Spain 1:1, than Japan go through (or 2:1 and 2:2, 3:2 and 3:3, etc.). Germany wins by more than 2 goals and Japan needs to win.