England will be very confident of beating Panama - who qualified for just their first World Cup this summer - but Kane is expecting a very hard match.
He said: "I felt Tunisia got a soft penalty, and if the referee thought that was a penalty, then surely England should have got two".
Ultimately, England won anyway but the failure to not award them a penalty could have been a game-changing situation - for all the wrong reasons.
Tunisia were handed a controversial first half penalty as Kyle Walker was adjudged to have fouled Fakhreddine Ben Youssef, with VAR confirming the decision that handed the underdogs an undeserved first half equaliser.
Harry Kane scored a dramatic stoppage-time victor as England beat Tunisia 2-1 in Volgograd.
"He is one of the best attackers in the Premier League and this is why he is highly sought after by the highest clubs", Maaloul said in his post-match media conference. They were trying to grab hold, trying to stop us running, I couldn't move at set pieces. Instead they were opened up repeatedly by England early on, especially on the right flank with Kieran Trippier posing attacking menace with his pace and incisive crosses. England's chances all fell to other players and Kane was merely on the periphery of everything, not involved enough.
The England captain's goals which bookended the match mean fans will be in a more relaxed mood going into the team's second Group G match against Panama on Sunday. It's a massive win, and I'm so proud of the lads.
"We had a lot of bug spray on before the game, halftime, which was important because there was some of them in your eyes, some of them in your mouth, but I guess that's part of just dealing whatever comes your way and the team coped with it well".
'It was tough but we played really well and could have scored a few more.
"They [Tunisia] were highly disciplined in terms of our tactics and very strong up to 90 minutes before we conceded the second goal".
Three officials from Federation Internationale de Football Association gave a presentation to the England players and staff last Wednesday, but there are clearly still issues that need clearing up.
Walker said: "We've had a briefing, but what's correct and what's not?"