Atleast Ctrl+Alt+Del/Undo/Fx. And then there's the hotkeys used in XaAES:
+----------------------------------------------------------------------------------------------------------------------------+
|Key combo |Action |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+CLRHOME |Redraw screen |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+A |Terminates all applications (A list of
exceptions can be specified) |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+D |Open the screenshot dialog (XAAESNAP.PRG is
required. See 6.6.2) |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+H |Halt the system |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+L |Open task manager |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+P |Restore palette in colour depth of 8-bits or
less |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+Q |Quit XaAES |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+R |Change resolution |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+V |Unhide all applications |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+W |Global window cycling |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+X |Hide all except the currently focused
application |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+Y |Hide currently focused application |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+SPACE |Open main menu bar |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+SHIFT+SPACE |Open menu in current window if it has one,
else open main menu bar |
|----------------------+-----------------------------------------------------------------------------------------------------|
|CTRL+ALT+TAB |Cycle open applications |
+----------------------------------------------------------------------------------------------------------------------------+