diff -r 377d25d47ca9 -r ced5dc3079a3 share/hedgewars/Data/Missions/Training/Basic_Training_-_Grenade.lua
--- a/share/hedgewars/Data/Missions/Training/Basic_Training_-_Grenade.lua	Wed May 02 18:48:58 2018 +0200
+++ b/share/hedgewars/Data/Missions/Training/Basic_Training_-_Grenade.lua	Wed May 02 20:09:48 2018 +0200
@@ -124,7 +124,8 @@
 		loc("Hold the Attack key pressed for more power.").."|"..
 		loc("Attack: [Space]").."|"..
 		loc("Aim: [Up]/[Down]").."|"..
-		loc("Change direction: [Left]/[Right]"), 2, 20000)
+		loc("Change direction: [Left]/[Right]").."|"..
+		loc("Note: Walking is disabled in this mission."), 2, 20000)
 		spawnTargets()
 	elseif gamePhase == 2 then
 		ShowMission(loc("Basic Grenade Training"), loc("Timer"),