All achievements for the Xbox 360 title, Resident Evil 4 HD have been leaked online.
There are 12 total achievements that can be achieved, adding to 1000 achievement points. And looking at all 12 achievements, it looks like most of them can be acquired just by playing through the campaign. But to receive all achievement points, be prepared to beat the game on its hardest difficulty, acquire all bottle caps and unlock all costumes. Take a look: